strings.LastIndexFunc() Function in Golang With Examples

strings.LastIndexFunc() Function in Golang returns the index of string s of the last Unicode code point, which satisfies func(c), or it returns -1 if no matches found. Syntax:

func LastIndexFunc(s string, f func(rune) bool) int

Here, s is the string and func() is a function. Return Value: It returns the integer. Example 1: Output:

15
7

Example 2: Output:

12
6