CODEWITHSUNDEEP
javascriptangularjs
User
User

Reputation: 1363

compare with angular object

Following my angular object 

  $scope.obj1= [
    {"NewID":38,"Type":"Faculty","Year":"2016","Status":"Active"},
    {"NewID":39,"Type":"Staff","Year":"2016","Status":"Active"},
    {"NewID":40,"Type":"Faculty","Year":"2016","Status":"Active"},
    {"NewID":41,"Type":"Faculty","Year":"2016","Status":"Active"}
 ]

I want to check 'Type' contains any 'Staff' or 'Faculty' for that I use following code 

      var myobj=$scope.obj1;

       var x=false; y=false;

          for (var i = 0; i < myobj.length; i++) {
            if ( myobj[i].Type == 'Faculty') {                    
                x=true;
                break;
            }

          }
         for (var i = 0; i < myobj.length; i++) {

            if ( myobj[i].Type == 'Staff') {
                y=true;  
               break;               
            }
          }

i used JavaScript for that i am looking for easy way in angular or JavaScript rather than using for loop

Upvotes: 0

Views: 128

Answers (3)

Max Leizerovich
Max Leizerovich

Reputation: 1701

filter will create a new array every time, try this if all you need is to know if the object exists:

obj1= [
    {"NewID":38,"Type":"Faculty","Year":"2016","Status":"Active"},
    {"NewID":39,"Type":"Staff","Year":"2016","Status":"Active"},
    {"NewID":40,"Type":"Faculty","Year":"2016","Status":"Active"},
    {"NewID":41,"Type":"Faculty","Year":"2016","Status":"Active"}
 ];

 const includes = -1 !== obj1.findIndex(item => item.Type === "Faculty" || item.Type === "Staff" );

// in case your browser doesnt support arrow functions:
 const includes2 = 
    -1 !== obj1.findIndex(
    function (item) {
      return  item.Type === "Faculty" || item.Type === "Staff";
      }
    );

Upvotes: 3

taguenizy
taguenizy

Reputation: 2265

var filteredObjects = $scope.obj1.filter(function(obj){
   return obj.Type === 'Faculty' || obj.Type === 'Staff';
})

This will return you an array with the filtered objects (Type 'Faculty' and 'Staff'). You can check the length to see if there's any or do any other operations you need.

EDIT
Since you only want to check if it contains any 'Faculty' or 'Staff' you should use Array.prototype.some instead. 

var exists = $scope.obj1.some(function (obj) { 
    return obj.Type === 'Faculty' || obj.Type === 'Staff';
}

For separate result you could just create the function 

function checkExists (type) {
    return $scope.obj1.some(function (obj) { 
        return obj.Type === type;
    }
}
var facultyExist = checkExists('Faculty');
var staffExist = checkExists('Staff');

Upvotes: 5

Chetan
Chetan

Reputation: 942

  obj1.forEach(function(val,index){
  if(val.type=='Faculty)
  {
   //your code
   } 
  else if(val.type == 'Staff')
  {
     //your code
 })

Upvotes: 0

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