Nodejs Array Max max()

Method Source Code

var Canvas = require('../')
  , canvas = new Canvas(50, 50)/*from  w w w. j  a  v  a2 s.com*/
  , ctx = canvas.getContext('2d');

process.on('SIGINT', function(){
  ctx.reset();
  process.nextTick(function(){
    process.exit();
  });
});

Array.prototype.max = function(){
  return this.sort(function(a, b){
    return a - b;
  }).pop();
};

function rand() {
  return Math.random() * 5 | 0;
}

ctx.hideCursor();

setInterval(function(){
  var data = [rand(), rand(), rand(), rand(), rand(), rand()]
    , max = data.max()
    , x = 3;

  ctx.clearRect(0, 0, canvas.width, canvas.height);
  data.forEach(function(n){
    var y = 20
      , w = 8
      , h = 20 * (n / max);

    ctx.fillStyle = 'blue';
    ctx.fillRect(x, y - h + 3, w, h);
    ctx.fillStyle = 'white';
    ctx.fillText(n.toString(), x + 3, y + 1);
    x += 9;
  });
}, 1000 / 6);

Related

1. max()

   Array.prototype.max = function() {
     return this.reduce(function(p, v) {
       return (p > v ? p : v);
     });
   

2. max()

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

3. max()

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

4. max()

   maxNum([1,2,3]);    
   maxNum([10,3,10,4]);  
   maxNum([-5,100]);    
   function maxNum(arr) {
     var max = arr[0];
     for(var i = 1; i < arr.length; i++) {
       if(arr[i] > max) {
         max = arr[i];
     return max;
   function maxNum(arr) {
     var len = arr.length; 
     var max = -Infinity;
     while (len--) {
       if (arr[len] > max) {
         max = arr[len];
     return max;
   };
   var arr = [1,3,5];
   Array.prototype.max = function() {
     return Math.max.apply(null, this);
   console.log(arr.max());
   

5. max()

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

6. max()

   Array.prototype.max = function () {
       return this.reduce(function(previousValue, currentValue) {
           return previousValue > currentValue ? previousValue : currentValue;
       });
   };
   

7. max()

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

8. max()

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

9. max()

   Array.prototype.max = function(){
     var a = this;
     var max = 0;
     for(var x = 1;x<a.length;x++)
       if(a[x]>a[max])
       max = x;
     return a[max];