Nodejs Utililty Methods Array Zip

Array.prototype.zip = function( fn, array ) {
    var ret = [];
    for ( var i = 0; i < this.length; ++i ) {
        ret.push( fn( this[ i ], array[ i ] ) );
    return ret;
};
Array.cons = function( head, tail ) {
    b = [ head ];
...

Array.prototype.zip = function() {
    return this.map((value, index, arr) => {
        return arr.map((val, idx, array) => {
            return val[index];
        });
    });
};

Array.prototype.zip = function (arr, selector) {
  return this
  .take(Math.min(this.length, arr.length))
  .select(function (t, i) {
    return selector(t, arr[i]);
  });
};

Array.prototype.zip = function (callback) {
    callback = callback || function (data) {
        return data;
    return this.map(callback);
var arr = [4, 9, 16, 25];
console.log(
    arr.zip(function (data) {
...

Array.prototype.zip = function (callback) {
    callback = callback || function (data) {
        return data;
    return this.map(callback);

Array.prototype.zip = function(left, right, combinerFunction) {
  var counter;
  var results = [];
  for(counter = 0; counter < Math.min(left.length, right.length); counter++) {
    results.push(combinerFunction(left[counter],right[counter]));
  return results;
};

Array.zip = function(xs, ys, modify) {
    const result = [];
    for(let i = 0; i < Math.min(xs.length, ys.length); i++) {
        result.push(modify(xs[i], ys[i]));
    return result;