JAVASCRIPT: STRING TRIMMING AND PADDING

by Santosh Thakur

HTML

<h1>JAVASCRIPT: STRING TRIMMING AND PADDING</h1>

JavaScript

String.prototype.lpad = function(padString, length) {
	var str = this;
  console.log('padString', padString);
    while (str.length < length)
        str = padString + str;
    return str;
}
//pads right
String.prototype.rpad = function(padString, length) {
	var str = this;
  console.log('length', length);
    while (str.length < length)
        str = str + padString;
    return str;
}

var str = "6";
console.log(str.lpad("0", 8)); //result "00005"
console.log(str.rpad("0", 7)); //result "50000"