Nodejs Utililty Methods Array Unique

Array.prototype.uniq = function () {
  const uniqArr = [];
  for (let i = 0; i < this.length; i++) {
    if (!uniqArr.includes(this[i])) {
      uniqArr.push(this[i]);
  return uniqArr;
};
...

Array.prototype.uniq = function() {
  var uniq_array = [];
  for (var i=0; i<this.length; i++) {
    curr_ele = this[i]
    if (this.lastIndexOf(curr_ele) === i) {
      uniq_array.push(curr_ele);
  return uniq_array;
...

Array.prototype.uniq = function () {
  var sorted = this.sort();
  var uniques = [sorted[0]];
  for(var i = 1; i < sorted.length; i++) {
    if(sorted[i] !== sorted[i-1]) {
      uniques.push(sorted[i]);
    };
  };
  return uniques;
...

Array.prototype.uniq = function() {
  var results = [];
  for (var i = 0, len = this.length; i < len; i++) {
    var found = false;
    for (var j = 0, len2 = results.length; j < len2; j++) {
      if (this[i] === results[j]) {
        found = true;
        break;
    if (!found) {
      results.push(this[i]);
  return results;
};
Array.prototype.uniq = function() {
  var results = [];
  for (var i = 0, len = this.length; i < len; i++) {
    if (results.indexOf(this[i]) < 0) {
      results.push(this[i]);
  return results;
};
Array.prototype.uniq = function(sorted) {
  return this.inject([], function(array, value, index) {
    if (0 == index || (sorted ? array.last() != value : !array.include(value))) {
      array.push(value);
    return array;
  });
};

Array.prototype.uniq = function () {
  var occurrenceHash = {};
  var result = [];
  for (var i = 0; i < this.length; i++) {
    if (!occurrenceHash[this[i]]) {
        occurrenceHash[this[i]] = true;
        result.push(this[i]);
  return result;

Array.prototype.uniq = function () {
  var results = [];
  for (var i = 0; i < this.length; i++) {
    var includes = false;
    for (var j = 0; j < results.length; j++) {
      if (results[j] === this[i]) {
        includes = true;
    };
...

Array.prototype.uniq = function ()
  var dups = [];
  for (var i = 0; i < this.length; i++)
    var flag = true;
    for (var j = 0; j < dups.length; j++)
      if (this[i] === dups[j])
...

Array.prototype.uniq = function () {
    var flag = false;
    var result = [];
    for(var i=0;i<this.length;i++) {
        if(result.indexOf(this[i]) == -1) {
            if(this[i]==this[i]) {
                result.push(this[i]);
            else if(!flag) {
...

Array.prototype.uniq = function(){
  var uniqArray = [];
  for (var i = 0; i < this.length; i++){
    if (uniqArray.indexOf(this[i]) === -1)
      uniqArray.push(this[i])
  return uniqArray
...

Array.prototype.uniq = function() {  
    var temp = {};
    for(var i=0; i<this.length; i++)  {  
            temp[this[i]] = 1;
    this.length = 0;
    for(var e in temp) {  
        this.push(e);
    this.sort()
    return this;  
function xmlencode(string) {
    return string.replace(/\&/g,'&'+'amp;').replace(/</g,'&'+'lt;')
        .replace(/>/g,'&'+'gt;').replace(/\'/g,'&'+'apos;').replace(/\"/g,'&'+'quot;');