Strings

String Builder

func join(strs ...string) string {
    var sb strings.Builder
    for _, str := range strs {
        sb.WriteString(str)
    }
    return sb.String()
}

var sb strings.Builder

sb.WriteString(str)

return sb.String()

Contains

Returns boolean

strings.Contains("warren code", "code")

Fields

String s is split on the basis of white spaces and store in a string array

v = strings.Fields("warren code")

Repeats

Repeats string 4 times

res := strings.Repeat(str1, 4)

ReplaceAll

Returns new string with replaced word. Can be used to replace white character

strings.ReplaceAll("original string to replace", "replace", "new")

Index

Index returns the index of the first instance of substr in s, or -1 if substr is not present in s

strings.Index("chicken", "ken")

Return 4. str := "chicken"

idx := strings.Index(str, "ken")

fmt.Print(str[:idx]) // prints chic

Split

Splits string by parameter passed in

names := strings.Split(str, ":")

str := "Warren:Veerasingam"

names := strings.Split(str, ":")

fmt.Print(names[0]) // prints Warren

fmt.Print(names[1]) // prints Veerasingam