_.sortedIndexOf

_.sortedIndexOf(array, value)

This method is like _.indexOf except that it performs a binary search on a sorted array.

Since

4.0.0

Arguments

1. array (Array): The array to inspect.
2. value (*): The value to search for.

Returns

(number): Returns the index of the matched value, else -1.

Example

_.sortedIndexOf([4, 5, 5, 5, 6], 5);
// => 1