[](https://www.npmjs.com/package/@acoustic-content-sdk/redux-utils)
Implementation of utility functions that help working with redux state.
## Immutability
One of the [core principals](https://redux.js.org/introduction/three-principles) of the redux pattern is to keep all state immutable. This implies that when updating a value we need to make a copy of the affected objects. The following functions help to limit the size of these copies.
### Updater
The `createUpdater` creates an wrapper around an object. This wrapper allows to set or remove (deep) properties of the wrapped object without mutating it. The updater makes sure to only create the minimum set of shallow copies.
Example:
```typescript
const myObject={...};
const updater = createUpdater(myObject);
updater.set('elements.text.value', 'newValue');
const newObject = updater.get();
```
The updater works similar to [immer](https://www.npmjs.com/package/immer) but without the overhead.
### Invariance Checks
During development it is important to verify that objects are not getting mutated. Use the invariance checker to test this, but make sure to not include these checks in production builds for performance reasons.
Example:
```typescript
const inv = invarianceChecker(myObject);
// do some operations
// validate that myObject has not been mutated
assert(inv());
```
## API Documentation
[API Documentation](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d)
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d)
## redux-utils package
Implementation of utility functions that help working with redux state.
## Functions
| Function | Description |
| --- | --- |
| [createBreadcrumb(aId, aSelParent, aSelId)](#_a91779a14d6c8019d66a8fa19132f34cf9cfcd6de4aee776f76c91ec4971a386) | Constructs a breadcrumb trail starting at a particular ID |
| [createUpdater(aValue, aLogSvc)](#_680f1067fa296a4a8b2937c3c533018dd4c5741195c725bf9481e3e2c7e7c9bc) | Constructs a function that updates one or more values in a json object. |
| [equalsByRevision(aLeft, aRight)](#_40e7e18d15a2a92d0fd3d7ba13ddf86422161510c82304858671e0ddebf7605d) | |
| [getNavSelectors(aJson$, aLogSvc)](#_0438eb852efe4d66e7c09562ed67cc834bfa2870399ec5af4ccc49066f82e465) | Returns selectors that access parent and child nodes from a navigation structure |
| [invarianceChecker(aValue)](#_358fb957b195dedfa327db176523ad971101531377375207424921c7c675a450) | Creates a function that validates that an object has not changed. Note that this should only be used for debugging purposes, since it makes a deep copy of the value to test for the invariance |
| [isDraftId(aAuthoringId)](#_4eb5a09c8ef21dadd86f2f0925e406763d7a5be7871eb4c83fe8e02716eb4899) | Tests if the authoring ID has a draft suffix |
| [isNotFromDataBase(aValue)](#_32e47d346c6dc2c646a8ec101b8f6d11a264115b60978967ccee661bdda76fc2) | Tests if a value is not from a database |
| [isNotRoot(aId)](#_a22a34dc33081bece4bf05c8017796a3df597c2eb559a43dc38ee49b2c224926) | |
| [markAsFromDataBase(aValue)](#_3d077392d763c36986d251b4ee5b628b392b50d3dfc26adddddffc5fb70c25e0) | Adds a key to the item marking it as coming from the local data base |
| [removeArrayItemByAccessor(aAccessor, aItem, aUser)](#_6774a273474a53f161a0c8f91a40436a9f6253ad2623f7bd45614ee10aeccf78) | |
| [removeDataBaseMarker(aValue)](#_d9fd65b2b240ea2969b812ee4d10043160dc646534217b3afed3abfe54f8ee9f) | Removes the database marker from the object |
| [removeRecord()](#_29a372e94f47b78351b4599fe738f8e9ba1cc34fdc9bfc8737d289902d8c7901) | Creates a reducer that removes a key from a record |
| [rxElementType(aTypeResolver, aLogSvc, aScheduler)](#_7a4445cec080c5231c7451952454333ec6c45418e9bd9f51e14c5782ee2376da) | Resolves the element type, either directly from the element or from the authoring type |
| [rxLogDiff(aLogger)](#_7e047d0302842ad68303edb7cdfc433f572db0d1f81208f018437786201f8f66) | |
| [rxResolveAuthoringItems(idOrItem, resolveItem, resolveAsset, aLogSvc, scheduler)](#_3a9b29f9eada57eb2920cac5852c965b0844627d91fe466dc0223a35d9112a61) | Resolves the item and all referenced items and assets |
| [selectByDeliveryId(aId)](#_229db95e1d0e1c64d7a3b92b222f978b6461b666a9a8452cad927f3aded5f3ea) | Constructs a selector that validates that the ID is a delivery ID (not a draft ID) and selects based on that ID from the state |
| [serializeDiff(aOld, aNew, aSameStyle, aNewStyle, aDeletedStyle)](#_0b0a0b37d089bb607411855fc055de45001f6b70b59aecad7e9bcf7f64210928) | Serializes the differences between two JSON objects |
| [sortAuthoringItems(aResult)](#_2fff32e14c799ee34ccdaeb550734f877a6402f6908d14e9cef401ee821fd9ee) | Performs a topological sort on a set of resolved items |
| [updateGenericProperties(aItem, aUser)](#_7340faca297ad6d5f6ee00558b719d581049ee010fee69ed9bf984e2327f89a3) | Updates properties of the item that depend on the environment |
| [updateImageElement(aAccessor, aItem, aAsset)](#_fee4450061abd148fe9092055813d15270a4728cbf7866ef5f7f254959aec9c9) | |
| [updateRecord(aKey, aPredicate)](#_f5f31b2ac5dba9ea4c2d82c7fa3e3fbc3e6a502742495bd1833cd2f361e7c4c1) | Creates a reducer that adds an item to a record |
| [updateSingleItem(aPredicate)](#_5dadbc4cc173f23601e78b60b53afee6aacfc713c2f370425d34896341961cb5) | |
| [updateValueByAccessor(aAccessor, aValue, aItem, aUser)](#_0cb808c8ed399b5ff2019106ce85947fc945142615bf81a8e067bf1d94ca3961) | Updates a single property based on the accessor expression. |
## Interfaces
| Interface | Description |
| --- | --- |
| [ItemWithId](#_bf5c06cbe13c8b3df6362d296f32c18b2dd8489067d9ba600801d9d03dd615a0) | |
| [ItemWithLinkedDocId](#_636feb8d6b282b8d632b8e167e757361dfc0fa4d886f3bd4501f0a0b8cd32ace) | |
| [ItemWithRevision](#_07327d2e735d2f0d4472cc89a9d4a1f9dc4700ad44ee4e9e928721bcc00ba70d) | |
| [NavigationJson](#_eedef43020714a43d7a87dc2ef67c286049ed49ba3c5b4c57064f12c4ce5dbdd) | |
| [NavSelectors](#_8e4f2122f5d9bec6a7598219d9d07ff9e2c7be6c042d2c6335d11873fc72b73b) | Interface that exposes selectors to the navigation structure |
| [ResolvedNode](#_99fbb814d794811a55919f6e6684fcc0f80c4707a324f65a03c95865a5d33516) | |
| [Updater](#_6b9bc1878476af24473d2e1e9d4337a4f8ea00cce2c941a39dca53e219dfc692) | Facade that offers the modification functions for a json object. The original JSON object will not be modified and the modified object will only contain the minimum number of modifications. |
## Variables
| Variable | Description |
| --- | --- |
| [addToSetEpic](#_0293835f13213b3a8f569e81735446f6578bb82a9b230e4a32d3702afc1b1b99) | Constructs an epic that convers an ADD action to a SET action |
| [cloneAuthoringItems](#_e9c7053186f123bb1423ee80e91cf8c07c351b0ed72d06b6fcf937c9eec6b2f8) | Basically a re-export of the clone functionality to have it all clean inside this one function |
| [DB\_KEY](#_172e7c6cdd459b4a1bb0e61ae2a780b733bdf44283c6d618687b5cd1e0563f2d) | |
| [DB\_VALUE](#_916a92abdcd3851d8e49fa0bfbc08d9b7b217c11054f856e5cf17e74a5a6c44b) | |
| [ensureDraftId](#_ceb07140f9334510dcc96cdfcdd9fb8a0d3c5543e1608543c79b32326c0133b3) | Makes sure to end the ID with a draft suffix |
| [getDeliveryId](#_aaf0b188e213a68166c853746678e5975cb7b9d8e1cdd425902b84b9e2c97eb9) | Returns the delivery ID from an authoring ID, i.e. strips off the ':draft' suffix from the ID |
| [getDeliveryIdFromAuthoringItem](#_adc862cbf2d7d738d3eaf725e5dc6b9d20ee064f0679ffab6ddf76eb2a83b168) | Returns the delivery ID from an authoring item. |
| [getValueByAccessor](#_d5f2b1feea4cd0cb348b8cbc92d606ec859a681a3dc9c7433a3e34a926398692) | Retrieves a property value by accessor |
| [keyById](#_476dbef95ff31a8b73acd9a2979715f94f249c9368dbd00e739ef2d40ad744fb) | Extract the delivery ID of the draft |
| [ROOT\_ID](#_2c79faf0926425ffe1c5af4237424c1d6ccb5112094502897be7f67c4cb10c86) | |
| [selectClassification](#_80748f9696a0076b3bed0d2dd4e49756ce69f144dead49c80532f5f72a6df30f) | Extracts the classification property |
| [updateItemsWithRevision](#_908d1c83223572311c51c4705339d384d2ec4c7e38fc89577dd40285b9fb1e3c) | |
## Type Aliases
| Type Alias | Description |
| --- | --- |
| [AddRecordReducer](#_2aa70edc8d918d694c7a9a6f960bb927683dd73f56ff93d25fbcfe7c9be772a6) | Reducer function that adds an item to a record |
| [AuthoringItem](#_e836378bb28a201e353eae4b5bb27296039f9da6d2df8943a243029a1a1d7bbc) | |
| [ItemReducer](#_142dc4d910bf98729687d6dc0f50a0bf469089cdc7c27bdbed223c3f599de19c) | Reducer function that updates an item |
| [RemoveRecordReducer](#_bfa970d421e39181809fa835cbbbcbcd19ad6ff5cd85b2b0a9d5ee6e66b83c15) | Reducer function that adds an item to a record |
| [ResolutionResult](#_76b37241d67def66e80b35ed1930eb4b125747ee37e65f61b20fcfce5c274caf) | |
| [ResolveAuthoringAsset](#_5596cce2c2ed86388e6621d9559b53f45701e54ca600c6ef0820a19d15235717) | |
| [ResolveAuthoringContentItem](#_a8cfb25d3cbd9fe0f5e64752d20b1ae3ce26bb451dbf85c86bc4b9869dd3beb8) | |
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [createBreadcrumb](#_a91779a14d6c8019d66a8fa19132f34cf9cfcd6de4aee776f76c91ec4971a386)
## createBreadcrumb() function
Constructs a breadcrumb trail starting at a particular ID
Signature:
```typescript
export declare function createBreadcrumb(aId: string, aSelParent: UnaryFunction>, aSelId: UnaryFunction): Observable;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| aId | string | the start ID |
| aSelParent | UnaryFunction<string, Observable<T>> | selector function for the parent node |
| aSelId | UnaryFunction<T, string> | selector function for the ID from a parent node |
Returns:
`Observable`
the breadcrumb trail
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [createUpdater](#_680f1067fa296a4a8b2937c3c533018dd4c5741195c725bf9481e3e2c7e7c9bc)
## createUpdater() function
Constructs a function that updates one or more values in a json object.
Signature:
```typescript
export declare function createUpdater(aValue: T, aLogSvc?: LoggerService): Updater;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| aValue | T | the JSON structure to update |
| aLogSvc | LoggerService | |
Returns:
`Updater`
updater functions
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [equalsByRevision](#_40e7e18d15a2a92d0fd3d7ba13ddf86422161510c82304858671e0ddebf7605d)
## equalsByRevision() function
Signature:
```typescript
export declare function equalsByRevision(aLeft: ItemWithRevision, aRight: ItemWithRevision): boolean;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| aLeft | ItemWithRevision | |
| aRight | ItemWithRevision | |
Returns:
`boolean`
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [getNavSelectors](#_0438eb852efe4d66e7c09562ed67cc834bfa2870399ec5af4ccc49066f82e465)
## getNavSelectors() function
Returns selectors that access parent and child nodes from a navigation structure
Signature:
```typescript
export declare function getNavSelectors(aJson$: Observable, aLogSvc?: LoggerService): NavSelectors;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| aJson$ | Observable<NavigationJson> | the JSON that represents the navigation |
| aLogSvc | LoggerService | optional logger service |
Returns:
`NavSelectors`
the selectors
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [invarianceChecker](#_358fb957b195dedfa327db176523ad971101531377375207424921c7c675a450)
## invarianceChecker() function
Creates a function that validates that an object has not changed. Note that this should only be used for debugging purposes, since it makes a deep copy of the value to test for the invariance
Signature:
```typescript
export declare function invarianceChecker(aValue: any): Generator;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| aValue | any | the value to test |
Returns:
`Generator`
the validator
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [isDraftId](#_4eb5a09c8ef21dadd86f2f0925e406763d7a5be7871eb4c83fe8e02716eb4899)
## isDraftId() function
Tests if the authoring ID has a draft suffix
Signature:
```typescript
export declare function isDraftId(aAuthoringId: string): boolean;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| aAuthoringId | string | the ID |
Returns:
`boolean`
true if we have a draft suffix, else false
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [isNotFromDataBase](#_32e47d346c6dc2c646a8ec101b8f6d11a264115b60978967ccee661bdda76fc2)
## isNotFromDataBase() function
Tests if a value is not from a database
Signature:
```typescript
export declare function isNotFromDataBase(aValue: any): boolean;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| aValue | any | the value |
Returns:
`boolean`
true if the value exists and if it is not from the database, else false
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [isNotRoot](#_a22a34dc33081bece4bf05c8017796a3df597c2eb559a43dc38ee49b2c224926)
## isNotRoot() function
Signature:
```typescript
export declare function isNotRoot(aId: string): boolean;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| aId | string | |
Returns:
`boolean`
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [markAsFromDataBase](#_3d077392d763c36986d251b4ee5b628b392b50d3dfc26adddddffc5fb70c25e0)
## markAsFromDataBase() function
Adds a key to the item marking it as coming from the local data base
Signature:
```typescript
export declare function markAsFromDataBase(aValue: T): T;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| aValue | T | the value to work with |
Returns:
`T`
a value with the marker
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [removeArrayItemByAccessor](#_6774a273474a53f161a0c8f91a40436a9f6253ad2623f7bd45614ee10aeccf78)
## removeArrayItemByAccessor() function
Signature:
```typescript
export declare function removeArrayItemByAccessor(aAccessor: AccessorType, aItem: T, aUser?: User): Updater;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| aAccessor | AccessorType | |
| aItem | T | |
| aUser | User | |
Returns:
`Updater`
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [removeDataBaseMarker](#_d9fd65b2b240ea2969b812ee4d10043160dc646534217b3afed3abfe54f8ee9f)
## removeDataBaseMarker() function
Removes the database marker from the object
Signature:
```typescript
export declare function removeDataBaseMarker(aValue: T): T;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| aValue | T | the value to work with |
Returns:
`T`
a value without the marker
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [removeRecord](#_29a372e94f47b78351b4599fe738f8e9ba1cc34fdc9bfc8737d289902d8c7901)
## removeRecord() function
Creates a reducer that removes a key from a record
Signature:
```typescript
export declare function removeRecord(): RemoveRecordReducer;
```
Returns:
`RemoveRecordReducer`
the reducer
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [rxElementType](#_7a4445cec080c5231c7451952454333ec6c45418e9bd9f51e14c5782ee2376da)
## rxElementType() function
Resolves the element type, either directly from the element or from the authoring type
Signature:
```typescript
export declare function rxElementType(aTypeResolver: UnaryFunction>, aLogSvc?: LoggerService, aScheduler?: SchedulerLike): UnaryFunction>;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| aTypeResolver | UnaryFunction<string, Observable<AuthoringType>> | |
| aLogSvc | LoggerService | logger service |
| aScheduler | SchedulerLike | optional scheduler |
Returns:
`UnaryFunction>`
the resolved type or undefined if the type could not be determined
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [rxLogDiff](#_7e047d0302842ad68303edb7cdfc433f572db0d1f81208f018437786201f8f66)
## rxLogDiff() function
Signature:
```typescript
export declare function rxLogDiff(aLogger: Logger): MonoTypeOperatorFunction;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| aLogger | Logger | |
Returns:
`MonoTypeOperatorFunction`
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [rxResolveAuthoringItems](#_3a9b29f9eada57eb2920cac5852c965b0844627d91fe466dc0223a35d9112a61)
## rxResolveAuthoringItems() function
Resolves the item and all referenced items and assets
Signature:
```typescript
export declare function rxResolveAuthoringItems(idOrItem: IdOrItem, resolveItem: ResolveAuthoringContentItem, resolveAsset: ResolveAuthoringAsset, aLogSvc?: LoggerService, scheduler?: SchedulerLike): Observable;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| idOrItem | IdOrItem | |
| resolveItem | ResolveAuthoringContentItem | callback to resolve a content item |
| resolveAsset | ResolveAuthoringAsset | callback to resolve an asset |
| aLogSvc | LoggerService | |
| scheduler | SchedulerLike | scheduler for recursive calls |
Returns:
`Observable`
the observable containing the resolution result
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [selectByDeliveryId](#_229db95e1d0e1c64d7a3b92b222f978b6461b666a9a8452cad927f3aded5f3ea)
## selectByDeliveryId() function
Constructs a selector that validates that the ID is a delivery ID (not a draft ID) and selects based on that ID from the state
Signature:
```typescript
export declare function selectByDeliveryId(aId?: string): UnaryFunction, T>;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| aId | string | the ID |
Returns:
`UnaryFunction, T>`
a selector for that ID based on some state
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [serializeDiff](#_0b0a0b37d089bb607411855fc055de45001f6b70b59aecad7e9bcf7f64210928)
## serializeDiff() function
Serializes the differences between two JSON objects
Signature:
```typescript
export declare function serializeDiff(aOld: any, aNew: any, aSameStyle?: UnaryFunction, aNewStyle?: UnaryFunction, aDeletedStyle?: UnaryFunction): string;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| aOld | any | old object |
| aNew | any | new objects |
| aSameStyle | UnaryFunction<string, string> | styling callback for identical style |
| aNewStyle | UnaryFunction<string, string> | styling callback for new style |
| aDeletedStyle | UnaryFunction<string, string> | styling callback for deleted style |
Returns:
`string`
the serialized string
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [sortAuthoringItems](#_2fff32e14c799ee34ccdaeb550734f877a6402f6908d14e9cef401ee821fd9ee)
## sortAuthoringItems() function
Performs a topological sort on a set of resolved items
Signature:
```typescript
export declare function sortAuthoringItems(aResult: ResolutionResult): AuthoringItem[];
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| aResult | ResolutionResult | the resolution result, basically a graph of nodes |
Returns:
`AuthoringItem[]`
the items in toplogical order, i.e. parents before children
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [updateGenericProperties](#_7340faca297ad6d5f6ee00558b719d581049ee010fee69ed9bf984e2327f89a3)
## updateGenericProperties() function
Updates properties of the item that depend on the environment
Signature:
```typescript
export declare function updateGenericProperties(aItem: Updater, aUser?: User): Updater;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| aItem | Updater<T> | updater for the item |
| aUser | User | optionally the current user |
Returns:
`Updater`
the updater after the item has been modified
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [updateImageElement](#_fee4450061abd148fe9092055813d15270a4728cbf7866ef5f7f254959aec9c9)
## updateImageElement() function
Signature:
```typescript
export declare function updateImageElement(aAccessor: AccessorType, aItem: Updater, aAsset: AuthoringAsset): Updater;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| aAccessor | AccessorType | |
| aItem | Updater<AuthoringContentItem> | |
| aAsset | AuthoringAsset | |
Returns:
`Updater`
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [updateRecord](#_f5f31b2ac5dba9ea4c2d82c7fa3e3fbc3e6a502742495bd1833cd2f361e7c4c1)
## updateRecord() function
Creates a reducer that adds an item to a record
Signature:
```typescript
export declare function updateRecord(aKey: UnaryFunction, aPredicate?: EqualsPredicate): AddRecordReducer;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| aKey | UnaryFunction<T, string> | function to extract the key from the item |
| aPredicate | EqualsPredicate<T> | predicate to check if two items are equal |
Returns:
`AddRecordReducer`
the reducer
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [updateSingleItem](#_5dadbc4cc173f23601e78b60b53afee6aacfc713c2f370425d34896341961cb5)
## updateSingleItem() function
Signature:
```typescript
export declare function updateSingleItem(aPredicate?: EqualsPredicate): ItemReducer;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| aPredicate | EqualsPredicate<T> | |
Returns:
`ItemReducer`
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [updateValueByAccessor](#_0cb808c8ed399b5ff2019106ce85947fc945142615bf81a8e067bf1d94ca3961)
## updateValueByAccessor() function
Updates a single property based on the accessor expression.
Signature:
```typescript
export declare function updateValueByAccessor(aAccessor: AccessorType, aValue: any, aItem: T, aUser?: User): Updater;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| aAccessor | AccessorType | the accessor expression that points |
| aValue | any | the new value |
| aItem | T | the item to update |
| aUser | User | |
Returns:
`Updater`
a copy of the item with the modified value
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [ItemWithId](#_bf5c06cbe13c8b3df6362d296f32c18b2dd8489067d9ba600801d9d03dd615a0)
## ItemWithId interface
Signature:
```typescript
export interface ItemWithId
```
## Properties
| Property | Type | Description |
| --- | --- | --- |
| [id](#_02296c3e4a9f25477857d835faff230af46a0a51391a8e38b579a03a88e2f87e) | string | |
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [ItemWithLinkedDocId](#_636feb8d6b282b8d632b8e167e757361dfc0fa4d886f3bd4501f0a0b8cd32ace)
## ItemWithLinkedDocId interface
Signature:
```typescript
export interface ItemWithLinkedDocId
```
## Properties
| Property | Type | Description |
| --- | --- | --- |
| [id](#_ea1451711b5f654ba54fefeefddb45314d6862b04756518da109f4c33072a4bb) | string | |
| [linkedDocId](#_10b8c251acd547754d08fa04dddf525c563ed3d5c984565f33a7cb62534f370f) | string | |
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [ItemWithRevision](#_07327d2e735d2f0d4472cc89a9d4a1f9dc4700ad44ee4e9e928721bcc00ba70d)
## ItemWithRevision interface
Signature:
```typescript
export interface ItemWithRevision extends ItemWithId
```
## Properties
| Property | Type | Description |
| --- | --- | --- |
| [rev](#_a7205d59bb9d9b427157cfd071472f400f4f4bcd506fe52089d158614db26eb0) | string | |
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [NavigationJson](#_eedef43020714a43d7a87dc2ef67c286049ed49ba3c5b4c57064f12c4ce5dbdd)
## NavigationJson interface
Signature:
```typescript
export interface NavigationJson
```
## Properties
| Property | Type | Description |
| --- | --- | --- |
| [children](#_db0318caccbea8d5169129c8126ea41db301bb0437e66bf7a723653370813c2c) | NavigationJson[] | |
| [id](#_9cbbb92ce2127a9b539666ce60997a41eda1beeb905ef6fc641bb2c172e41492) | string | |
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [NavSelectors](#_8e4f2122f5d9bec6a7598219d9d07ff9e2c7be6c042d2c6335d11873fc72b73b)
## NavSelectors interface
Interface that exposes selectors to the navigation structure
Signature:
```typescript
export interface NavSelectors
```
## Properties
| Property | Type | Description |
| --- | --- | --- |
| [root](#_0ca130a51b91506e6404c3586b1c5f2f73f0220144d43bdf833d512f30104865) | string | ID of the (virtual) root item of the navigation |
| [selectChildren](#_fae46bd4c37c632e75371c8b51882d14a632fe60a9add00ce6b5841e2e56c50a) | UnaryFunction<string, Observable<string[]>> | Selects the children of a particular item |
| [selectParent](#_6be5c0d93789efad557089d521fd13c0653007d38db63873f95920c0d1e12027) | UnaryFunction<string, Observable<string>> | Selects the parent of a particular item |
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [ResolvedNode](#_99fbb814d794811a55919f6e6684fcc0f80c4707a324f65a03c95865a5d33516)
## ResolvedNode interface
Signature:
```typescript
export interface ResolvedNode
```
## Properties
| Property | Type | Description |
| --- | --- | --- |
| [id](#_a7da4cf792bbca1973660293022ed9c83e98259aa5d995a5a65e0ebae27fafcd) | string | |
| [item](#_6c51895c1dc496b50889ffe4a9bd89f90cdf10e18102d220b2aa88914dc53a5e) | T | |
| [parentId](#_178d7fc864ce69df8b9a619ea9b3b77dbd52ef1ec80f95fe259c18b90e2d4c95) | string | |
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [Updater](#_6b9bc1878476af24473d2e1e9d4337a4f8ea00cce2c941a39dca53e219dfc692)
## Updater interface
Facade that offers the modification functions for a json object. The original JSON object will not be modified and the modified object will only contain the minimum number of modifications.
Signature:
```typescript
export interface Updater
```
## Properties
| Property | Type | Description |
| --- | --- | --- |
| [add](#_7d4cf19d1750e88dd38763394b7d33928594bd0bb38bef2024513267411199b4) | BiFunction<string, any, T> | Inserts a new value into an array pointed to by the accessor. All values across the parent path will be cloned (shallow) if they do not have a clone, yet.Pass undefined as the new value to delete the value.Returns the modified version of the top level object. |
| [del](#_951622bb3087e9b90d6c04c57a4c0e1a932bb06c127170593292c151dab215f2) | UnaryFunction<string, T> | Removes the value pointed to by the accessor. All values across the parent path will be cloned (shallow) if they do not have a clone, yet.Returns the modified version of the top level object. |
| [get](#_16f3cd47614ebe28c04637881b9110739d507029e00290f95be348b84c6c4411) | Generator<T> | Returns the top level, modified object |
| [set](#_068b5d52f4e3dc5f414094ea57f3cd31445eff6ac0fb5ee522f87ae7706f0e3a) | BiFunction<string, any, T> | Replaces the value pointed to by the accessor with a new value. All values across the parent path will be cloned (shallow) if they do not have a clone, yet.Pass undefined as the new value to delete the value.Returns the modified version of the top level object. |
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [addToSetEpic](#_0293835f13213b3a8f569e81735446f6578bb82a9b230e4a32d3702afc1b1b99)
## addToSetEpic variable
Constructs an epic that convers an `ADD` action to a `SET` action
Signature:
```typescript
addToSetEpic: (aAddAction: string, aSetAction: string) => Epic
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [cloneAuthoringItems](#_e9c7053186f123bb1423ee80e91cf8c07c351b0ed72d06b6fcf937c9eec6b2f8)
## cloneAuthoringItems variable
Basically a re-export of the clone functionality to have it all clean inside this one function
Signature:
```typescript
cloneAuthoringItems: UnaryFunction
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [DB\_KEY](#_172e7c6cdd459b4a1bb0e61ae2a780b733bdf44283c6d618687b5cd1e0563f2d)
## DB\_KEY variable
Signature:
```typescript
DB_KEY = "ecec4405-7fb1-4b86-8d27-7338eea45683"
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [DB\_VALUE](#_916a92abdcd3851d8e49fa0bfbc08d9b7b217c11054f856e5cf17e74a5a6c44b)
## DB\_VALUE variable
Signature:
```typescript
DB_VALUE = "e3257dbc-1ca8-4d57-94a2-37934960f39f"
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [ensureDraftId](#_ceb07140f9334510dcc96cdfcdd9fb8a0d3c5543e1608543c79b32326c0133b3)
## ensureDraftId variable
Makes sure to end the ID with a draft suffix
Signature:
```typescript
ensureDraftId: (aAuthoringId: string) => string
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [getDeliveryId](#_aaf0b188e213a68166c853746678e5975cb7b9d8e1cdd425902b84b9e2c97eb9)
## getDeliveryId variable
Returns the delivery ID from an authoring ID, i.e. strips off the ':draft' suffix from the ID
Signature:
```typescript
getDeliveryId: UnaryFunction
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [getDeliveryIdFromAuthoringItem](#_adc862cbf2d7d738d3eaf725e5dc6b9d20ee064f0679ffab6ddf76eb2a83b168)
## getDeliveryIdFromAuthoringItem variable
Returns the delivery ID from an authoring item.
Signature:
```typescript
getDeliveryIdFromAuthoringItem: UnaryFunction
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [getValueByAccessor](#_d5f2b1feea4cd0cb348b8cbc92d606ec859a681a3dc9c7433a3e34a926398692)
## getValueByAccessor variable
Retrieves a property value by accessor
Signature:
```typescript
getValueByAccessor: (aItem: BaseAuthoringItem, aAccessor: string) => T
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [keyById](#_476dbef95ff31a8b73acd9a2979715f94f249c9368dbd00e739ef2d40ad744fb)
## keyById variable
Extract the delivery ID of the draft
Signature:
```typescript
keyById: UnaryFunction
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [ROOT\_ID](#_2c79faf0926425ffe1c5af4237424c1d6ccb5112094502897be7f67c4cb10c86)
## ROOT\_ID variable
Signature:
```typescript
ROOT_ID: string
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [selectClassification](#_80748f9696a0076b3bed0d2dd4e49756ce69f144dead49c80532f5f72a6df30f)
## selectClassification variable
Extracts the classification property
Signature:
```typescript
selectClassification: UnaryFunction
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [updateItemsWithRevision](#_908d1c83223572311c51c4705339d384d2ec4c7e38fc89577dd40285b9fb1e3c)
## updateItemsWithRevision variable
Signature:
```typescript
updateItemsWithRevision: (aState: Record, aItem: T) => Record
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [AddRecordReducer](#_2aa70edc8d918d694c7a9a6f960bb927683dd73f56ff93d25fbcfe7c9be772a6)
## AddRecordReducer type
Reducer function that adds an item to a record
Signature:
```typescript
export declare type AddRecordReducer = BiFunction, T, Record>;
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [AuthoringItem](#_e836378bb28a201e353eae4b5bb27296039f9da6d2df8943a243029a1a1d7bbc)
## AuthoringItem type
Signature:
```typescript
export declare type AuthoringItem = AuthoringContentItem | AuthoringAsset;
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [ItemReducer](#_142dc4d910bf98729687d6dc0f50a0bf469089cdc7c27bdbed223c3f599de19c)
## ItemReducer type
Reducer function that updates an item
Signature:
```typescript
export declare type ItemReducer = BiFunction;
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [RemoveRecordReducer](#_bfa970d421e39181809fa835cbbbcbcd19ad6ff5cd85b2b0a9d5ee6e66b83c15)
## RemoveRecordReducer type
Reducer function that adds an item to a record
Signature:
```typescript
export declare type RemoveRecordReducer = BiFunction, string, Record>;
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [ResolutionResult](#_76b37241d67def66e80b35ed1930eb4b125747ee37e65f61b20fcfce5c274caf)
## ResolutionResult type
Signature:
```typescript
export declare type ResolutionResult = Record>;
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [ResolveAuthoringAsset](#_5596cce2c2ed86388e6621d9559b53f45701e54ca600c6ef0820a19d15235717)
## ResolveAuthoringAsset type
Signature:
```typescript
export declare type ResolveAuthoringAsset = UnaryFunction>;
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [ResolveAuthoringContentItem](#_a8cfb25d3cbd9fe0f5e64752d20b1ae3ce26bb451dbf85c86bc4b9869dd3beb8)
## ResolveAuthoringContentItem type
Signature:
```typescript
export declare type ResolveAuthoringContentItem = UnaryFunction>;
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [ItemWithId](#_bf5c06cbe13c8b3df6362d296f32c18b2dd8489067d9ba600801d9d03dd615a0) > [id](#_02296c3e4a9f25477857d835faff230af46a0a51391a8e38b579a03a88e2f87e)
## ItemWithId.id property
Signature:
```typescript
id?: string;
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [NavigationJson](#_eedef43020714a43d7a87dc2ef67c286049ed49ba3c5b4c57064f12c4ce5dbdd) > [children](#_db0318caccbea8d5169129c8126ea41db301bb0437e66bf7a723653370813c2c)
## NavigationJson.children property
Signature:
```typescript
children?: NavigationJson[];
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [NavigationJson](#_eedef43020714a43d7a87dc2ef67c286049ed49ba3c5b4c57064f12c4ce5dbdd) > [id](#_9cbbb92ce2127a9b539666ce60997a41eda1beeb905ef6fc641bb2c172e41492)
## NavigationJson.id property
Signature:
```typescript
id: string;
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [ItemWithRevision](#_07327d2e735d2f0d4472cc89a9d4a1f9dc4700ad44ee4e9e928721bcc00ba70d) > [rev](#_a7205d59bb9d9b427157cfd071472f400f4f4bcd506fe52089d158614db26eb0)
## ItemWithRevision.rev property
Signature:
```typescript
rev?: string;
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [ItemWithLinkedDocId](#_636feb8d6b282b8d632b8e167e757361dfc0fa4d886f3bd4501f0a0b8cd32ace) > [id](#_ea1451711b5f654ba54fefeefddb45314d6862b04756518da109f4c33072a4bb)
## ItemWithLinkedDocId.id property
Signature:
```typescript
readonly id?: string;
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [ItemWithLinkedDocId](#_636feb8d6b282b8d632b8e167e757361dfc0fa4d886f3bd4501f0a0b8cd32ace) > [linkedDocId](#_10b8c251acd547754d08fa04dddf525c563ed3d5c984565f33a7cb62534f370f)
## ItemWithLinkedDocId.linkedDocId property
Signature:
```typescript
readonly linkedDocId?: string;
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [ResolvedNode](#_99fbb814d794811a55919f6e6684fcc0f80c4707a324f65a03c95865a5d33516) > [id](#_a7da4cf792bbca1973660293022ed9c83e98259aa5d995a5a65e0ebae27fafcd)
## ResolvedNode.id property
Signature:
```typescript
id: string;
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [ResolvedNode](#_99fbb814d794811a55919f6e6684fcc0f80c4707a324f65a03c95865a5d33516) > [item](#_6c51895c1dc496b50889ffe4a9bd89f90cdf10e18102d220b2aa88914dc53a5e)
## ResolvedNode.item property
Signature:
```typescript
item: T;
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [ResolvedNode](#_99fbb814d794811a55919f6e6684fcc0f80c4707a324f65a03c95865a5d33516) > [parentId](#_178d7fc864ce69df8b9a619ea9b3b77dbd52ef1ec80f95fe259c18b90e2d4c95)
## ResolvedNode.parentId property
Signature:
```typescript
parentId?: string;
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [NavSelectors](#_8e4f2122f5d9bec6a7598219d9d07ff9e2c7be6c042d2c6335d11873fc72b73b) > [root](#_0ca130a51b91506e6404c3586b1c5f2f73f0220144d43bdf833d512f30104865)
## NavSelectors.root property
ID of the (virtual) root item of the navigation
Signature:
```typescript
root: string;
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [NavSelectors](#_8e4f2122f5d9bec6a7598219d9d07ff9e2c7be6c042d2c6335d11873fc72b73b) > [selectChildren](#_fae46bd4c37c632e75371c8b51882d14a632fe60a9add00ce6b5841e2e56c50a)
## NavSelectors.selectChildren property
Selects the children of a particular item
Signature:
```typescript
selectChildren: UnaryFunction>;
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [NavSelectors](#_8e4f2122f5d9bec6a7598219d9d07ff9e2c7be6c042d2c6335d11873fc72b73b) > [selectParent](#_6be5c0d93789efad557089d521fd13c0653007d38db63873f95920c0d1e12027)
## NavSelectors.selectParent property
Selects the parent of a particular item
Signature:
```typescript
selectParent: UnaryFunction>;
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [Updater](#_6b9bc1878476af24473d2e1e9d4337a4f8ea00cce2c941a39dca53e219dfc692) > [add](#_7d4cf19d1750e88dd38763394b7d33928594bd0bb38bef2024513267411199b4)
## Updater.add property
Inserts a new value into an array pointed to by the accessor. All values across the parent path will be cloned (shallow) if they do not have a clone, yet.
Pass `undefined` as the new value to delete the value.
Returns the modified version of the top level object.
Signature:
```typescript
add: BiFunction;
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [Updater](#_6b9bc1878476af24473d2e1e9d4337a4f8ea00cce2c941a39dca53e219dfc692) > [del](#_951622bb3087e9b90d6c04c57a4c0e1a932bb06c127170593292c151dab215f2)
## Updater.del property
Removes the value pointed to by the accessor. All values across the parent path will be cloned (shallow) if they do not have a clone, yet.
Returns the modified version of the top level object.
Signature:
```typescript
del: UnaryFunction;
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [Updater](#_6b9bc1878476af24473d2e1e9d4337a4f8ea00cce2c941a39dca53e219dfc692) > [get](#_16f3cd47614ebe28c04637881b9110739d507029e00290f95be348b84c6c4411)
## Updater.get property
Returns the top level, modified object
Signature:
```typescript
get: Generator;
```
[Home](#_d841356070d965b659f4bf828f89c4514f635d563f79af9f8f4794e017b53782) > [@acoustic-content-sdk/redux-utils](#_619143de368e0e570d68b5c1e52c6030d3351467919afa9f62b8574bcccf697d) > [Updater](#_6b9bc1878476af24473d2e1e9d4337a4f8ea00cce2c941a39dca53e219dfc692) > [set](#_068b5d52f4e3dc5f414094ea57f3cd31445eff6ac0fb5ee522f87ae7706f0e3a)
## Updater.set property
Replaces the value pointed to by the accessor with a new value. All values across the parent path will be cloned (shallow) if they do not have a clone, yet.
Pass `undefined` as the new value to delete the value.
Returns the modified version of the top level object.
Signature:
```typescript
set: BiFunction;
```