Nodejs Utililty Methods Array In

Array.prototype.inArray = function(e) {
    for (var i in this){
        if (this[i]===e) return true;
    return false;

Array.prototype.inArray = function(e) {
  var length = this.length;
  for (var i = 0; i < length; i++) {
    if (this[i] == e)
      return true;
  return false;
};

Array.prototype.inArray = function (element) {
  for (var i = 0; i < this.length; i++) {
    if (this[i] == element) {
      return i;
  return -1;
};

Array.prototype.inArray = function (find, option) {
    var length = this.length;
    for (var i = 0; i < length; i++) {
        if (option == "case-insensitive") {
            if (this[i].toLowerCase() == find.toLowerCase()) {
                return true;
        if (this[i] == find) {
...

Array.prototype.inArray= function(i){
    var _this = this;
    for(var x=0; x<_this.length; x++){
        if(_this[x]==i) return x;
    return -1;

Array.prototype.inArray = function(item) {
  for(var i=0; i < this.length; i++) {
    if(item === this[i]) return true;
  return false;
};

Array.prototype.inArray=function(needle){
    for(var i=0;i<this.length;i++){
      if(this[i]===needle){
        return true;
    return false;
var arr=["red","blue","yellow"];
...

Array.prototype.inArray = function(needle) {
        for(var i=0; i < this.length; i++) {
                if(this[i] === needle) {
                        return true;
        return false;

Array.prototype.inArray = function(p_val) {
  var l = this.length;
  for(var i = 0; i < l; i++) {
    if(this[i] == p_val) {
      return true;
  return false;

Array.prototype.inArray = function(val) {
  var l = this.length;
  for(var i = 0; i < l; i++) {
    if(this[i] == val) {
      return true;
  return false;