Nodejs Array Object Key notIn( key, array )

Method Source Code

Array.prototype.notIn = function( key, array )
{
    return this.filter( function(element)
    {/*from w  w  w .  j  a  v  a2 s  .  c  om*/
        var flag = true;

        for(var i = 0; i < array.length; i++)
        {
            if( element[key] == array[i][key]) flag = false;
        }

        return flag;
    });
};

Related

1. containsReturn(key, value)

   Array.prototype.containsReturn = function(key, value) {
       var i = this.length;
       while (i--) {
           if (this[i][key] === value){
               return i;
       return false;
   

2. getKeys()

   Array.prototype.getKeys = function(){
     var keys = '';
     for(var i in this) keys += ',' + i;
     return keys.substr(1).split(',');
   

3. hasKey()

   Array.prototype.hasKey = function(){ 
     for(i in this){ 
       if(i === arguments[0]) 
         return true; 
     }; 
     return false; 
   };
   

4. hasMultipleByKey(key)

   Array.prototype.hasMultipleByKey = function(key) {
       var foundOnce = false;
       var i = this.length - 1;
       while (i >= 0) {
           if (this[i].getKey() === key) {
               if (foundOnce)
                   return true;
               else
                   foundOnce = true;
   ...
   

5. keys()

   Array.prototype.keys = function keys () {
     return new ArrayIterator(this, 'key');
   };
   

6. 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;
   

7. 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;
   

8. 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;
   };
   

9. arrToObj()

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