Nodejs Array Any Predicate any(x)

Method Source Code

Array.prototype.any = function(x){
    var found = false;
    var i = 0;//  w  w w .  ja  v a  2 s  .  com

    while(!found && i < this.length){
        if(typeof x === 'function'){
           if(x(this[i])){
               found = true;
           }
        }else if(x == this[i]){
            found = true;
        }
        i++;
    }
    return found;
};

Related

1. any(p)

   Array.prototype.any = function (p) {
     for(let el of this){
       if(p(el)) {return true;}
     return false;
   };
   

2. any(p)

   Array.prototype.any = function (p) {
     for (var i = 0; i <this.length; i++){
       if (p(this[i]) === true){
         return true;
     return false;
   };
   

3. any(predicate)

   Array.prototype.any = function(predicate){
     for (var i = 0; i < this.length; i++){
       if (predicate(this[i])) {
         return true
     return false
   

4. any(predicate, context)

   Array.prototype.any = function (predicate, context) {
       context = context || window;
       var f = this.some || function (p, c) {
           var l = this.length;
           if (!p) return l > 0;
           while (l-- > 0)
               if (p.call(c, this[l], l, this) === true) return true;
           return false;
       };
   ...
   

5. any(searchItem)

   Array.prototype.any = function(searchItem){
     return this.filter(function(arrayItem){return arrayItem == searchItem}).length > 0;
   

6. AnyT(lambda, t)

   Array.prototype.AnyT = function(lambda, t) {
       if (typeof (lambda) !== "function")
           throw new Error("lambda must be a function");
       for (var idx = 0; idx < this.length; idx++) {
           var obj = this[idx];
           if (typeof (obj) !== t)
               throw new Error("array items must be " + t + " types but " + obj + " is a " + typeof (obj));
           if (lambda(obj))
               return true;
   ...