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Prefix Suffix

HasPrefix tests whether the string s begins with prefix:
strings.HasPrefix(s, prefix string) bool
HasSuffix tests whether the string s end with suffix:
strings.HasSuffix(s, suffix string) bool

package main
import ( 
 "fmt"
 "strings"   
 )
func main() {
var str string = "This is an example of a string"
fmt.Printf("T/F? Does the string \"%s\" have prefix %s? ", str, "Th") 
fmt.Printf("%t\n", strings.HasPrefix(str, "Th"))
}

Output: T/F? Does the string “This is an example of a string” have prefix Th? True

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