strings.TrimFunc() Function in Golang With Examples
strings.TrimFunc() Function in Golang is used to returns a slice of the string s with all leading and trailing Unicode code points c satisfying f(c) removed.
Syntax:
func TrimFunc(s string, f func(rune) bool) string
Here, s is the string and function checks the value of rune and returns true if it can be trimmed.
Return Type: It returns the string after removing the specified characters from string.
Example 1:
// Golang program to illustrate// the strings.TrimFunc() Functionpackage main // importing fmt, unicode and stringsimport ( "fmt" "strings" "unicode") // Calling Main methodfunc main() { // Here we have a string. The function // returns true for the letters // and all other will trim out // from the string fmt.Print(strings.TrimFunc("77GeeksForGeeks!!!", func(r rune) bool { return !unicode.IsLetter(r) }))} |
Output:
GeeksForGeeks
Example 2:
// Golang program to illustrate// the strings.TrimFunc() Function package main // importing fmt, unicode and stringsimport ( "fmt" "strings" "unicode") // Calling Main methodfunc main() { // Here we have a string. The function // returns true for the letters // and numbers as well // and all other will trim out // from the string fmt.Print(strings.TrimFunc("1234GeeksForGeeks!!!!", func(r rune) bool { return !unicode.IsLetter(r) && !unicode.IsNumber(r) }))} |
Output:
1234GeeksForGeeks
