Function insertItemAtIndex

insertItemAtIndex<T>(
    index: number | IndexCallback<T>,
    value: T,
    arr?: T[] | null,
): T[]
Insert an item at a given index
Type Parameters
- T
Parameters
- index: number | IndexCallback<T>
  An index or a callback provided to findIndex
- value: T
  The value of the item to insert
- Optionalarr: T[] | null
  The array to insert into
Returns T[]
New array with the item inserted
- Defined in array.ts:231