Nodejs Utililty Methods String Ends With

String.prototype.endsWith = function(str) {
  return (this.match(str + "$") == str);

String.prototype.endsWith = function (str){
    return this.slice(-str.length) === str;
};

String.prototype.endsWith = function(str){
  return this.slice(-str.length) == str

String.prototype.endsWith = function(str) {
    return (this.match(str + '$') == str);

String.prototype.endsWith = function(str)
{return (this.match(str+"$")==str)}
String.prototype.startsWith = function(str)
{return (this.match("^"+str)==str)}
var myStr = "Earth is a beautiful planet";
if (myStr.startsWith("Earth")) { 
  console.log("TRUE");
else {
...

String.prototype.endsWith = function(str) {
    var len = str.length;
    if (len > this.length) { return false; }
    return this.substring(this.length-len) === str;
};

String.prototype.endsWith = function(str){
    return (this.toString().substr(-str.length) == str);
};

String.prototype.endsWith = function(str) {
  return this.substring(this.length - str.length, this.length) === str;
};

var fs = require('fs');
var dirName = process.argv[2];
var fileExt = process.argv[3];
var filteredFS = function() {
  fs.readdir(dirName, function (err, list){
    for(var i=0; i< list.length; i++) {
      if(list[i].endsWith("."+fileExt)) {
        console.log(list[i]);
  })
}();
String.prototype.endsWith = function(str) {
  var lastIndex = this.lastIndexOf(str);
    return (lastIndex !== -1) && (lastIndex + str.length === this.length);

String.prototype.endsWith = function (str){
    return this.indexOf(str) == this.length - str.length - 1;
};