Nodejs Array Contain isContain(e)

Method Source Code

//return the element is n array or not
Array.prototype.isContain = function(e) {

  return this.indexOf(e) != -1;

}

Related

1. containsByProp(propName, value)

   Array.prototype.containsByProp = function(propName, value){
     for (var i = this.length - 1; i > -1; i--) {
       var propObj = this[i];
         if(propObj[propName] === value) {
           return true;
   return false;
   

2. containsContentsOf(array)

   Array.prototype.containsContentsOf = function(array) {
       var contains = true;
       if(!array)
           contains = false;
       for(var item=0; item<array.length; item++){
           if(this.indexOf(array[item]) < 0)
               contains = false;
       return contains;
   ...
   

3. containsDuplicateValues()

   Array.prototype.containsDuplicateValues = function () {
       var map = {};
       for (var i = 0, size = this.length; i < size; i++) {
           var value = this[i];
           if (value != 0) {
               if (map[value]) {
                   return true;
               map[value] = true;
   ...
   

4. containsElementByProperty(chave,obj)

   Array.prototype.containsElementByProperty = function(chave,obj) {
       var i = this.length;
       while (i--) {
         if (angular.equals(this[i][chave], obj)) {
               return true;
       return false;
   };
   ...
   

5. Contains( value )

   Array.prototype.Contains = function( value )
       for ( var i = 0; i < this.length; i++ )
           if ( this[ i ] === value ) return true;
       return false;
   };