Golang : How to check if a string contains another sub-string?

Problem :

How to check if a string contains another sub-string in Golang?

Solution :

Use the strings.Contains() function.

For example :

 package main

 import (
 "fmt"
 "strings"
 )

 func main() {

 str := "this is a string containing a big string and small string"

 subStr := "big string"

 if strings.Contains(str, subStr) {
 fmt.Printf("Found subStr in str \n")
 } else {
 fmt.Printf("subStr is not in str \n")
 }

 subStr2 := "another string"

 if strings.Contains(str, subStr2) {
 fmt.Printf("Found subStr in str \n")
 } else {
 fmt.Printf("subStr2 is not in str \n")
 }

 }

Output :

Found subStr in str

subStr2 is not in str