Nodejs Array Compact compact()

Method Source Code

Array.prototype.compact = function() {
  return this.reduce(function(res, el) {
    if(el !== null) {
      res.push(el);/*from   w  w w . j a v  a 2  s. c om*/
    };
    return res;
  }, [])
}

Related

1. 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;
   };
   ...
   

2. compact()

   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;
   };
   

3. compact()

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

4. compact()

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

5. 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;
   

6. compact()

   Array.prototype.compact = function() {
       return this.filter(function (i) {
           return !!i;
       });
   };
   

7. compact()

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

8. compact(deleteValue)

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

9. compact(fn)

   Array.prototype.compact = function(fn) {
     for (var i = 0; i < this.length; i++)
       if (this[i] == null) {
         this.splice(i, 1);
     return this;