[**@sora-soft/framework API Reference v2.0.0**](../README.md) *** [@sora-soft/framework API Reference](../globals.md) / ArrayMap # Class: ArrayMap\ Defined in: [packages/framework/src/utility/Utility.ts:189](https://github.com/sora-soft/sora-node/blob/b502ee5b534689cc7d2350abf8d8b0ff780961fe/packages/framework/src/utility/Utility.ts#L189) ## Extends - `Map`\<`K`, `T`[]\> ## Type Parameters ### K `K` ### T `T` ## Constructors ### Constructor > **new ArrayMap**\<`K`, `T`\>(): `ArrayMap`\<`K`, `T`\> Defined in: [packages/framework/src/utility/Utility.ts:190](https://github.com/sora-soft/sora-node/blob/b502ee5b534689cc7d2350abf8d8b0ff780961fe/packages/framework/src/utility/Utility.ts#L190) #### Returns `ArrayMap`\<`K`, `T`\> #### Overrides `Map.constructor` ## Properties ### \[toStringTag\] > `readonly` **\[toStringTag\]**: `string` Defined in: node\_modules/.pnpm/typescript@5.9.3/node\_modules/typescript/lib/lib.es2015.symbol.wellknown.d.ts:137 #### Inherited from `ArrayMap`.[`[toStringTag]`](#tostringtag) *** ### size > `readonly` **size**: `number` Defined in: node\_modules/.pnpm/typescript@5.9.3/node\_modules/typescript/lib/lib.es2015.collection.d.ts:45 #### Returns the number of elements in the Map. #### Inherited from `ArrayMap`.[`size`](#size) *** ### \[species\] > `readonly` `static` **\[species\]**: `MapConstructor` Defined in: node\_modules/.pnpm/typescript@5.9.3/node\_modules/typescript/lib/lib.es2015.symbol.wellknown.d.ts:319 #### Inherited from `Map.[species]` ## Methods ### \[iterator\]() > **\[iterator\]**(): `MapIterator`\<\[`K`, `T`[]\]\> Defined in: node\_modules/.pnpm/typescript@5.9.3/node\_modules/typescript/lib/lib.es2015.iterable.d.ts:143 Returns an iterable of entries in the map. #### Returns `MapIterator`\<\[`K`, `T`[]\]\> #### Inherited from `Map.[iterator]` *** ### append() > **append**(`k`, `value`): `void` Defined in: [packages/framework/src/utility/Utility.ts:194](https://github.com/sora-soft/sora-node/blob/b502ee5b534689cc7d2350abf8d8b0ff780961fe/packages/framework/src/utility/Utility.ts#L194) #### Parameters ##### k `K` ##### value `T` #### Returns `void` *** ### clear() > **clear**(): `void` Defined in: node\_modules/.pnpm/typescript@5.9.3/node\_modules/typescript/lib/lib.es2015.collection.d.ts:20 #### Returns `void` #### Inherited from `Map.clear` *** ### delete() > **delete**(`key`): `boolean` Defined in: node\_modules/.pnpm/typescript@5.9.3/node\_modules/typescript/lib/lib.es2015.collection.d.ts:24 #### Parameters ##### key `K` #### Returns `boolean` true if an element in the Map existed and has been removed, or false if the element does not exist. #### Inherited from `Map.delete` *** ### entries() > **entries**(): `MapIterator`\<\[`K`, `T`[]\]\> Defined in: node\_modules/.pnpm/typescript@5.9.3/node\_modules/typescript/lib/lib.es2015.iterable.d.ts:148 Returns an iterable of key, value pairs for every entry in the map. #### Returns `MapIterator`\<\[`K`, `T`[]\]\> #### Inherited from `Map.entries` *** ### forEach() > **forEach**(`callbackfn`, `thisArg?`): `void` Defined in: node\_modules/.pnpm/typescript@5.9.3/node\_modules/typescript/lib/lib.es2015.collection.d.ts:28 Executes a provided function once per each key/value pair in the Map, in insertion order. #### Parameters ##### callbackfn (`value`, `key`, `map`) => `void` ##### thisArg? `any` #### Returns `void` #### Inherited from `Map.forEach` *** ### get() > **get**(`key`): `T`[] \| `undefined` Defined in: node\_modules/.pnpm/typescript@5.9.3/node\_modules/typescript/lib/lib.es2015.collection.d.ts:33 Returns a specified element from the Map object. If the value that is associated to the provided key is an object, then you will get a reference to that object and any change made to that object will effectively modify it inside the Map. #### Parameters ##### key `K` #### Returns `T`[] \| `undefined` Returns the element associated with the specified key. If no element is associated with the specified key, undefined is returned. #### Inherited from `Map.get` *** ### has() > **has**(`key`): `boolean` Defined in: node\_modules/.pnpm/typescript@5.9.3/node\_modules/typescript/lib/lib.es2015.collection.d.ts:37 #### Parameters ##### key `K` #### Returns `boolean` boolean indicating whether an element with the specified key exists or not. #### Inherited from `Map.has` *** ### keys() > **keys**(): `MapIterator`\<`K`\> Defined in: node\_modules/.pnpm/typescript@5.9.3/node\_modules/typescript/lib/lib.es2015.iterable.d.ts:153 Returns an iterable of keys in the map #### Returns `MapIterator`\<`K`\> #### Inherited from `Map.keys` *** ### remove() > **remove**(`k`, `value`): `void` Defined in: [packages/framework/src/utility/Utility.ts:207](https://github.com/sora-soft/sora-node/blob/b502ee5b534689cc7d2350abf8d8b0ff780961fe/packages/framework/src/utility/Utility.ts#L207) #### Parameters ##### k `K` ##### value `T` #### Returns `void` *** ### set() > **set**(`key`, `value`): `this` Defined in: node\_modules/.pnpm/typescript@5.9.3/node\_modules/typescript/lib/lib.es2015.collection.d.ts:41 Adds a new element with a specified key and value to the Map. If an element with the same key already exists, the element will be updated. #### Parameters ##### key `K` ##### value `T`[] #### Returns `this` #### Inherited from `Map.set` *** ### sureGet() > **sureGet**(`k`): `T`[] Defined in: [packages/framework/src/utility/Utility.ts:203](https://github.com/sora-soft/sora-node/blob/b502ee5b534689cc7d2350abf8d8b0ff780961fe/packages/framework/src/utility/Utility.ts#L203) #### Parameters ##### k `K` #### Returns `T`[] *** ### values() > **values**(): `MapIterator`\<`T`[]\> Defined in: node\_modules/.pnpm/typescript@5.9.3/node\_modules/typescript/lib/lib.es2015.iterable.d.ts:158 Returns an iterable of values in the map #### Returns `MapIterator`\<`T`[]\> #### Inherited from `Map.values` *** ### groupBy() > `static` **groupBy**\<`K`, `T`\>(`items`, `keySelector`): `Map`\<`K`, `T`[]\> Defined in: node\_modules/.pnpm/typescript@5.9.3/node\_modules/typescript/lib/lib.es2024.collection.d.ts:25 Groups members of an iterable according to the return value of the passed callback. #### Type Parameters ##### K `K` ##### T `T` #### Parameters ##### items `Iterable`\<`T`\> An iterable. ##### keySelector (`item`, `index`) => `K` A callback which will be invoked for each item in items. #### Returns `Map`\<`K`, `T`[]\> #### Inherited from `Map.groupBy`