Nodejs Array Insert insert(index, item)

Method Source Code

/*//from ww  w.  ja  v  a 2s. co  m
*   Custom functions added to array object
*   in order for easier manipulations on task's 
*   children and registering keys for events.
*/

/*
*   Used for removing one of the children 
*   of the parent task.
*/
Array.prototype.insert = function (index, item) {
   this.splice(index, 0, item);
};
/*
*   Used for key registering in the tree event keys
*/
Array.prototype.registerKeys = function(keys){
   for(var i=0;i< keys.length;i++){
      this.push(keys[i]);
   }
};
/*
*   Checks whether the array contains the item
*/
Array.prototype.contains = function(item){
   for(var i=0;i< this.length;i++){
      if(item == this[i]){
         return true;
      }
   }
   return false;
};
/*
*   Checks whether the html element exists
*/
function isDOMElementExist(element){
   if($(element).length >0){
      return true;
   }
   return false;
};

Related

1. insert(index, item)

   Array.prototype.insert = function (index, item) {
     this.splice(index, 0, item);
   

2. insert(index, item)

   Array.prototype.insert = function(index, item) {
     this.splice(index, 0, item);
     return this;
   };
   

3. insert(index, item)

   Array.prototype.insert = function(index, item) {
     this.splice(index, 0, item);
     return this;
   if (Function.prototype.name === undefined){
     Object.defineProperty(Function.prototype,'name',{
       get: function(){
         return /function ([^(]*)/.exec( this+"" )[1];
     });
   

4. insert(index, item)

   Array.prototype.insert = function(index, item) {
     var args = this.slice.call(arguments),
         index = args.shift();
     args = [index,0].concat(args);
     this.splice.apply(this, args);
     return this;
   var result = [1,2,3,4,7,8,9,10].insert(4,5,6);
   console.log(result);
   ...
   

5. insert(index, item)

   Array.prototype.insert = function (index, item) {
     this.splice(index, 0, item);
   };
   function insertionSort (array) {
     var sorted = [];
     function backItUp(obj) {
       if(!sorted.length) return sorted.push(obj);
       for(var j=sorted.length-1; j>=0; j--) {
         if(obj.value >= sorted[j].value) {
   ...
   

6. insert(index, item)

   Array.prototype.insert = function(index, item) {
     index = Math.min(index, this.length);
     arguments.length > 1
       && this.splice.apply(this, [index, 0].concat([].pop.call(arguments)))
       && this.insert.apply(this, arguments);
     return this;
   

7. insert(index, value)

   Array.prototype.insert = function(index, value)
     if(index >= 0)
       var a = this.slice(), b = a.splice(index);
       a[index] = value;
       return a.concat(b);
   };
   ...
   

8. insert(index, value)

   Array.prototype.insert = function (index, value) {
       this.splice(index, 0, value);
   };
   

9. insert(object)

   Array.prototype.insert = function(object) {
     this[this.length] = object;
     return this;