Nodejs Array Object Key asObject(labels)

Method Source Code

Array.prototype.asObject = function(labels) {
   var result = {};
   var _ctx = this;
   /*from  w w  w  . ja v a2s.c  om*/
   labels.each(function(label, idx) {
      if (label != null)
         result[label] = _ctx[idx];
   })
      
   return result;
}

Related

1. notIn( key, array )

   Array.prototype.notIn = function( key, array )
       return this.filter( function(element)
           var flag = true;
           for(var i = 0; i < array.length; i++)
               if( element[key] == array[i][key]) flag = false;
           return flag;
       });
   };
   

2. objectIndex(key,value)

   Array.prototype.objectIndex = function(key,value) {
     for(var i = 0, len = this.length; i < len; i++) {
         if (this[i][key] === value) return i;
     return -1;
   

3. options(textKey, valueKey)

   Array.prototype.options = function(textKey, valueKey) {
     var options = [];
     options = this.map(function(item) {
        return { text: item[textKey], value: item[valueKey] }
     });
     return options;
   

4. updateObject(id, key, value_key, value)

   Array.prototype.updateObject = function (id, key, value_key, value) {
     for (var i = 0; i < this.length; i++) {
       if (this[i][key] == value) {
         return this[i][value_key] = value;
   };
   

5. arrToObj()

   Array.prototype.arrToObj = function(){
     var obj = {};
     for (var i = 0; i < this.length; i++) {
       obj[i] = this[i]
     return obj;
   

6. destroy(obj)

   Array.prototype.destroy = function(obj){
     var destroyed = null;
     for(var i = 0; i < this.length; i++){
       while(this[i] === obj){
         destroyed = this.splice(i, 1)[0];
     return destroyed;
   

7. fromObject(obj)

   Array.prototype.fromObject = function (obj) {
       var ar = [];
       for(item in obj){
           ar.push(obj[item]);
       return ar;
   };
   

8. getAllObjectsBy(field, withValue)

   Array.prototype.getAllObjectsBy = function(field, withValue)
     var results = [];
     for (var i = 0; i < this.length; i++) {
       if(this[i][field] == withValue)
         results.push(this[i]);
     return (results.length>0) ? results : null;
   

9. replace(oldObj, newObj)

   Array.prototype.replace = function(oldObj, newObj){
      var indexOfOldItem = this.indexOf(oldObj)
      if(indexOfOldItem==-1){
         throw new Error("oldObj not in list")
      this[indexOfOldItem] = newObj
      return oldObj
   };
   Array.prototype._checkIndexInRange = function(index){
   ...