need to collect each property values in an array of objects to separate arrays

Question

I need to collect each property values in an array of objects int to separate property arrays, is there any simple way to do it. Either underscore and angularjs utilities are fine.

For example, I have an array of objects as,

 $scope.expNumArray = [];
 $scope.itemHrArray = []; 
 $scope.highReArray = [];

$scope.rowdata = [{
    "expNum": "678",    
    "itemHr": "",   
    "highRe": "C"
    }, {
    "expNum": "978",    
    "itemHr": "3",  
    "highRe": ""
}];

Now for this I need to have the following:

 $scope.expNumArray = ["678", "978"];

 $scope.itemHrArray = ["", "3"];

 $scope.highReArray = ["C",""];

Ashutosh Tripathi · Accepted Answer · 2015-10-20 09:47:12Z

2

you can use angular's forEach to achieve this.

$scope.expNumArray = [];
 $scope.itemHrArray = []; 
 $scope.highReArray = [];



$scope.rowdata = [{
    "expNum": "678",    
    "itemHr": "",   
    "highRe": "C"
    }, {
    "expNum": "978",    
    "itemHr": "3",  
    "highRe": ""
}];

angular.forEach($scope.rowdata,function(value,key){

   $scope.expNumArray.push(value["expNum"]);
   $scope.itemHrArray.push(value["itemHr"]);
   $scope.highReArray.push(value["highRe"]);

});

edited Oct 20, 2015 at 9:47

Ashutosh Tripathi

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answered Oct 20, 2015 at 8:03

Shushanth Pallegar

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Comments

Jason Anderson · Accepted Answer · 2015-10-20 08:02:14Z

0

You can use underscore's each function to loop over

 $scope.rowdata

and append to each of the three other arrays. A bit cleaner than a Javascript for loop. This article about leveraging underscore might be of interest as well.

answered Oct 20, 2015 at 8:02

Jason Anderson

11 bronze badge

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