Nodejs Array Take takeWhile(predicate)

Method Source Code

Array.prototype.takeWhile = function (predicate) {
   predicate = predicate || Predicate;// w  w  w  .  jav  a2  s .c  o m
   var l = this.length;
   var arr = [];
   for (var i = 0; i < l && predicate(this[i], i) === true ; i++)
      arr.push(this[i]);

   return arr;
};

Related

1. take(n)

   Array.prototype.take = function (n) {
     return this.splice(0, n);
   };
   

2. take(x)

   Array.prototype.take = function(x){
     return this.slice(0,x)
   

3. takeSample()

   Array.prototype.takeSample = function () {
       var n = Math.round((Math.random() * (this.length - 1)));
       return this[n];
   };
   

4. takeUntil(fun)

   Array.prototype.takeUntil = function (fun) {
       var result = new Array(), index = 0;
       while (!fun(this[index])) {
           result.push(this[index++]);
       return result;
   };
   

5. takeWhile(fun)

   Array.prototype.takeWhile = function (fun) {
       var result = new Array(), index = 0;
       while (fun(this[index])) {
           result.push(this[index++]);
       return result;
   };