Nodejs Utililty Methods String Ends With

String.prototype.endsWith = function(s){
  var d = this.length - s.length;
  return d >= 0 && this.lastIndexOf(s) === d;

String.prototype.endsWith=function(s)
  return this.substring(this.length-s.length)==s;
};

String.prototype.endsWith = function(s, i) {
  if(i) { return s.toLowerCase() == this.substring(this.length - s.length).toLowerCase() }
  return s == this.substring(this.length - s.length)
};

String.prototype.endsWith = function(searchString) {
var result = true;     
   var subjectString = this.toString();
   for(var i=1;i<=searchString.length;i++){
      var lastcharsubjectString = subjectString.charAt(subjectString.length-i);
      var lastcharsearchString =searchString.charAt(searchString.length-i);
      if(lastcharsubjectString != lastcharsearchString){
         result = false;
         break;
...

if (!String.prototype.endsWith) {
  String.prototype.endsWith = function(searchString, position) {
    var subjectString = this.toString();
    if (position === undefined || position > subjectString.length) {
      position = subjectString.length;
    position -= searchString.length;
    var lastIndex = subjectString.indexOf(searchString, position);
    return lastIndex !== -1 && lastIndex === position;
...

String.prototype.endsWith = function(searchString, position) {
      var subjectString = this.toString();
      if (position === undefined || position > subjectString.length) {
        position = subjectString.length;
      position -= searchString.length;
      var lastIndex = subjectString.indexOf(searchString, position);
      return lastIndex !== -1 && lastIndex === position;
  };
...

String.prototype.endsWith = function(searchString, position) {
      var subjectString = this.toString();
      if (position === undefined || position > subjectString.length) {
        position = subjectString.length;
      position -= searchString.length;
      var lastIndex = subjectString.indexOf(searchString, position);
      return lastIndex !== -1 && lastIndex === position;
  };
...

String.prototype.endsWith = function(str) {
    if (this.length - this.indexOf(str) === str.length) {
        return true;
    }else {
        return false;
};

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;
};
String.prototype.startsWith = function (str){
  return this.indexOf(str) == 0;
};