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shift()

shift<T>(arr): [T, T[]]

Returns a tuple containing the first element (head) of the given array and the remaining elements of the array (tail).

Type Parameters​

• T

Parameters​

arr​

T[]

The element to get the head/tail of.

Returns​

[T, T[]]

Remark​

pure function

Example​

shift([1, 2, 3, 4]);
// [1, [2, 3, 4, 5]]