[Home](./index.md) > [@datashaper/schema](./schema.md) > [SpreadArgs](./schema.spreadargs.md) ## SpreadArgs interface Signature: ```typescript export interface SpreadArgs extends InputColumnArgs ``` Extends: [InputColumnArgs](./schema.inputcolumnargs.md) ## Properties | Property | Modifiers | Type | Description | | --- | --- | --- | --- | | [delimiter?](./schema.spreadargs.delimiter.md) | | string | (Optional) Delimiter to use when converting string cell values into an array with String.split | | [onehot?](./schema.spreadargs.onehot.md) | | boolean | (Optional) Indicates that a onehot-style spread should be performed. This maps all unique cell values to new columns and sets the output cell value to a binary 1/0 based on column match. This is in contrast to the default spread, which just maps array values to column by index. | | [preserveSource?](./schema.spreadargs.preservesource.md) | | boolean | (Optional) Keep the original columns (default is to remove source columns). | | [to](./schema.spreadargs.to.md) | | string\[\] | |