Nodejs Array Object Key replace(oldObj, newObj)

Method Source Code

Array.prototype.replace = function(oldObj, newObj){
   var indexOfOldItem = this.indexOf(oldObj)
   if(indexOfOldItem==-1){
      throw new Error("oldObj not in list")
   }//from w ww.  j a  va 2s. c om
   this[indexOfOldItem] = newObj
   return oldObj
};

Array.prototype._checkIndexInRange = function(index){
   if(index<0 || index>=this.length)
      throw new Error('IndexOutOfBounds')
};

Array.prototype.set = function(index, obj){
   this._checkIndexInRange(index)
   this[index] = obj
};

Array.prototype.contains = function(obj, compareFunc){
   if(compareFunc){
      return this.some(function(element, index, array){
         return compareFunc(obj, element)
      })
   }else{
      return this.indexOf(obj)!=-1
   }
};

Array.prototype.removeAtIndex = function(index){
   this._checkIndexInRange(index)
   var removedObj = this[index];
   return this.slice(0,index).concat(this.slice(index+1))
};

Related

1. arrToObj()

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

2. asObject(labels)

   Array.prototype.asObject = function(labels) {
     var result = {};
     var _ctx = this;
     labels.each(function(label, idx) {
       if (label != null)
         result[label] = _ctx[idx];
     })
     return result;
   

3. 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;
   

4. fromObject(obj)

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

5. 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;
   

6. seen(obj)

   Array.prototype.seen = function (obj) {
     if (obj.type == 'notification') {
       var i = 0;
       while (this[i].noticeId != obj.noticeId && i < this.length)
         i++;
       return (i < this.length && this[i].seqN < obj.seqN);
     return false;
   

7. singleRemove(objectToRemove)

   Array.prototype.singleRemove = function(objectToRemove) {
       if ((index = this.indexOf(objectToRemove)) !== -1) {
           this.splice(index,1);
       return this;