Go by Example: String Functions

The standard library’s `strings` package provides many useful string-related functions. Here are some examples to give you a sense of the package.
	package main
	import s "strings" import "fmt"
We alias `fmt.Println` to a shorter name as we’ll use it a lot below.	var p = fmt.Println
	func main() {
Here’s a sample of the functions available in `strings`. Note that these are all functions from package, not methods on the string object itself. This means that we need pass the string in question as the first argument to the function.	p("Contains: ", s.Contains("test", "es")) p("Count: ", s.Count("test", "t")) p("HasPrefix: ", s.HasPrefix("test", "te")) p("HasSuffix: ", s.HasSuffix("test", "st")) p("Index: ", s.Index("test", "e")) p("Join: ", s.Join([]string{"a", "b"}, "-")) p("Repeat: ", s.Repeat("a", 5)) p("Replace: ", s.Replace("foo", "o", "0", -1)) p("Replace: ", s.Replace("foo", "o", "0", 1)) p("Split: ", s.Split("a-b-c-d-e", "-")) p("ToLower: ", s.ToLower("TEST")) p("ToUpper: ", s.ToUpper("test")) p()
You can find more functions in the `strings` package docs.
Not part of `strings` but worth mentioning here are the mechanisms for getting the length of a string and getting a character by index.	p("Len: ", len("hello")) p("Char:", "hello"[1]) }

$ go run string-functions.go
Contains:   true
Count:      2
HasPrefix:  true
HasSuffix:  true
Index:      1
Join:       a-b
Repeat:     aaaaa
Replace:    f00
Replace:    f0o
Split:      [a b c d e]
toLower:    test
ToUpper:    TEST

Len:  5
Char: 101

Previous example: Collection Functions.

Next example: String Formatting.