strungfunctions.go

//
// String Functions
// Go By Example
//
package main

// The standard library’s strings package provides many useful string-related
// functions. Here are some examples to give you a sense of the package.

import (
	"fmt"
	s "strings"
)

//
// We akias 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.
	// Since these are functions from the package, not methods
	// on the string object itself, we need pass the string in
	// question as the first argument to the function.
	//
	// You can find more functions in the strings package docs.

	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()

	//
	// Not part of strings, but worth mentioning here,
	// are the mechanisms for getting the length of a string
	// in bytes and getting a byte by index.
	//
	p("Len: ", len("hello"))
	p("Char:", "hello"[1])

}