Nodejs Array Compact compact()

Method Source Code

// Compact (array)
// ---------------
// Removes falsy values
Array.prototype.compact = function() {
  return this.filter(function(item) {
    return !!item;
  });//from w  w w  . j a va2  s. com
}

// Compact (object)
// ----------------
// Removes falsy values/keys
Object.prototype.compact = function() {
  var key, compacted;
  compacted = {};
  for(key in this) {
    if(this[key]) {
      compacted[key] = this[key];
    }
  }
  return compacted;
}

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((a) => a) 
   

4. 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;
   };
   ...
   

5. 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;
   };
   

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;
   };
   ...