Nodejs Array Compact compact()

Method Source Code

// Array/* www .  j a v a2 s.c om*/
Array.prototype.compact = function(){
    var ca = [];

    for(var i in this){
        if (this.hasOwnProperty(i)) {
            if ( present(this[i]) ) {
                ca.push(this[i]);
            }
        }
    }

    return ca;
};

Related

1. compact()

   Array.prototype.compact = function() {
     var results = [];
     for (var i = 0, len = this.length; i < len; i++) {
       if (this[i] != null) {
         results.push(this[i]);
     return results;
   };
   ...
   

2. compact()

   Array.prototype.compact = function() {
     return this.select(function(value) {
       return value != null;
     });
   };
   

3. compact()

   Array.prototype.compact = function() {
     return this.filter(function(item) {
       return !!item;
     });
   Object.prototype.compact = function() {
     var key, compacted;
     compacted = {};
     for(key in this) {
   ...
   

4. compact()

   Array.prototype.compact = function () { 
     return this.filter((a) => a) 
   

5. compact()

   Array.prototype.compact = function()
       var a = [];
       for( var i = 0; i < this.length; i++ ) {
           if( i in this ) 
               if( this[ i ] != "" ) a.push( this[ i ] );
       return a;
   };
   ...
   

6. compact()

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

7. compact()

   Array.prototype.compact = function () {
     return this.filter((value) => {
       return value;
     });
   };
   

8. compact()

   Array.prototype.compact = function() {
     return this.filter(function(i) {if (i) return true})
   Array.prototype.collect = function(key) {
     return this.map(function(i){return i[key]})
   Array.prototype.avg = function(key) {
     return eval(this.join('+')) / this.length;
   Array.prototype.stats = function() {
     var avg = this.avg();
     var diff2 = this.map(function(i) {return (i-avg)*(i-avg)});
     var diff2avg = diff2.avg();
     return {
       diff2: diff2,
       var: diff2avg,
       std: Math.sqrt(diff2avg),
       avg: avg,
       total: this.length
   Array.prototype.reduceToHash = function(key, val) {
     var tmp = {};
     this.forEach(function (i) {
       var k = i[key];
       var v = i[val];
       if (!tmp.hasOwnProperty(k))
         tmp[k] = [];
       tmp[k].push(v)
     });
     return tmp;
   

9. compact()

   Array.prototype.compact = function() {
     return this.reduce(function(res, el) {
       if(el !== null) {
         res.push(el);
       };
       return res;
     }, [])