extract the last set of string from string in js code example

Example 1: javascript string get last two character

var member = "my name is Mate";

var last2 = member.slice(-2);

alert(last2); // "te"

Example 2: str.substring if 2 letters

public String firstTwo(String str) {
    return str.length() < 2 ? str : str.substring(0, 2);
}