Go StartsWith(str string)

The strings package has what you are looking for. Specifically the HasPrefix function: http://golang.org/pkg/strings/#HasPrefix

Example:

fmt.Println(strings.HasPrefix("my string", "prefix"))  // false
fmt.Println(strings.HasPrefix("my string", "my"))      // true

That package is full of a lot of different string helper functions you should check out.

For Example

If you want to check if a string starts with a dot

package main

import "strings"

func main() {
   str := ".com"
   fmt.Println(strings.HasPrefix(str, ".")
}

Terminal:

$ true

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