Nodejs Utililty Methods Array Contain

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

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

Array.prototype.contains = function(element) {
    return (arrValues.indexOf(element) > -1);

Array.prototype.contains = function(element) {
  if(!element)
    return false;
  for (var e in this) {
    var arrayElement = this[e];
    if(element == arrayElement) {
      return true;
...

Array.prototype.contains = function(element){ 
    return this.indexOf(element) > -1;
};

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

Array.prototype.contains = function(i) {
    return this.indexOf(i) > -1;
};

var twoSum = function(nums, target) {
  for (var i = nums.length - 1; i >= 0; i--) {
    let val = target - nums[i];
    if (nums.contains(i, val) === true) {
      return [nums.indexOf(val), i];
  return [];
};
...

Array.prototype.contains = function (item) {
    return this.indexOf(item) != -1

Array.prototype.contains = function(item) {
  return this.indexOf(item) !== -1;
};