# ReadonlyArrayOrItem

typedef

[See source](https://github.com/ckeditor/ckeditor5/blob/master/packages/ckeditor5-utils/src/toarray.ts#L33)

<a id="type-parameters">

## Type parameters

### `T`

#### Value

`T | ReadonlyArray<T>`

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Full index of the CKEditor 5 API reference: [llms.txt](llms.txt)