Nodejs Array Max max(selector)

Method Source Code

Array.prototype.max = function(selector){

   var maxItem = this[0];
   var maxValue = -999999;
   this.forEach(function(item){
      var value = selector(item);
      if( value > maxValue ){
         maxItem = item;//from  w ww  .  j ava2 s . com
         maxValue = value;
      } 
   });

   return maxItem;

}

Related

1. max(fun)

   Array.prototype.max = function (fun) {
       var max = this[0];
       this.forEach(x => {
           if (fun ? fun(max, x) : (max < x))
               max = x;
       });
       return max;
   };
   

2. max(func)

   Array.prototype.max = function (func) {
       return func === undefined ? Math.max.apply(null, this) : Math.max.apply(null, this.select(func));
   };
   

3. max(k)

   Array.prototype.max = function (k) {
     return Math.max.apply (null, this.column (k));
   };
   

4. max(prop)

   Array.prototype.max = function (prop) {
       var max = prop ? this[0][prop] : this[0];
       var len = this.length;
       for (var i = 1; i < len; i++) {
           var item = prop ? this[i][prop] : this[i];
           if (item > max) {
               max = item;
       return max;
   };
   

5. max(s)

   Array.prototype.max = function (s) {
     s = s || Selector;
     var l = this.length;
     var max = s(this[0]);
     while (l-- > 0)
       if (s(this[l]) > max) max = s(this[l]);
     return max;
   };
   

6. maxima()

   Array.prototype.maxima = function() {
     for(var i = 0, maxValue = Number.MIN_VALUE; i < this.length; i++) {
       parseInt(this[i]) > maxValue && (maxValue = this[i]);
     return maxValue
   var arr = [1,21,3,4,22,45,6,7,32];
   console.log(arr.join("|") + ":" + arr.maxima());
   

7. maxima()

   Array.prototype.maxima = function(){
     for (var i = 0, maxValue = Number.MIN_VALUE; i < this.length; i++) {
       parseInt(this[i]) > maxValue &&  (maxValue = this[i])
     };
     return maxValue
   var arr = [1,21,3,4,22,45,6,7,32];
   console.log(arr.join("+")+"="+arr.sum());
   console.log(arr.join("|")+" "+arr.maxima());
   ...
   

8. maximum()

   'use strict';
   Array.prototype.maximum = function () {
     return this.reduce(function (max, aValue) {
       return Math.max(max, aValue);
     }, this[0]);
   };
   

9. maximum()

   Array.prototype.maximum = function()
       var max = this[0];
       for(el in this)
           if(this[el] > max)
               max = this[el] ;
       return max ;
   };