Function lastIndexOfFirstGroup

Returns the last index of the first continuous group of a given value. Strict equality (===) is used to compare elements.

Time complexity: O(n)

Space complexity: O(1)

Example

const iterable = ['a', 'a', 'b', 'b', 'c', 'c'];

lastIndexOfFirstGroup(iterable, 'a'); // 1
Copy

See

firstIndexOfLastGroup to do the same thing but find the first index of the last group

Iterable