Nodejs Utililty Methods Array Min

Array.prototype.min = function() { 
  return Math.min.apply(null, this) 

Array.prototype.min = function(){
  return Math.min.apply({},this)

var min = Math.min.apply(null, arr),
    max = Math.max.apply(null, arr);
Array.prototype.min = function() {
  return Math.min.apply(null, this);
};

Array.prototype.min = function () {
  "use strict";
  return Math.min.apply(null, this);
};

Array.prototype.min = function() {
  return Math.min.apply(Math, this);
};

function Calculator(array){    
  var self = this;
  (function(array){
    self.min = array.min();
    self.max = array.max();
    self.avg = array.avg();
  })(array);
Array.prototype.min = function(){
...

Array.prototype.min = function() {
  var r = null;
  for (var i = 0; i < this.length; i++) {
    if (r === null || this[i] < r) {
      r = this[i];
  return r;
};
...

Array.prototype.min = function(){
   var min=this[0];
   this.forEach(function(v){min=(v<min)?v:min;});
   return min;
};

maxNum([1,2,3]);      
maxNum([10,3,10,4]);  
maxNum([-5,100]);      
function minNum(arr) {
  var len = arr.length;
  var min = Infinity;
  while (len--) {
    if (arr[len] < min) {
      min = arr[len];
...

Array.prototype.min = function() {
  var min = this[0];
  var len = this.length;
  for (var i = 1; i < len; i++){
    if (this[i] < min){
      min = this[i];
return min;
...