How to sum 2 var in angular js

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Hello Guys, how are you i hope you all be fine guys i need to sum 2 values in my angular project but am new and just a beginner lever angular programmer i dont know how to make variable in angular and sum it

What I have tried:

<tbody>
    var num1,num2,num3
num1 = item.item_qty;
num2 = item.product_price
num3 = num1 + num2;
    <tr ng-repeat="item in orders" class="animated fadeInUp">
        
      <td>{{item.item_qty}}</td>
      <td>{{item.product_name}}</td>
      <td>{{item.status}}</td>
      <td>{{item.product_price}}</td>
<pre>      <td>{{num3}}</td>

Posted 21-Jun-17 6:23am

Member 9983063

Updated 21-Jun-17 10:27am

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2 solutions

Solution 1

I think you would be better off putting the adding/subtracting of your angular variables in your controller rather than your view.

You should add another property to your item object...i'll call it sumOfTwoVars. So you should have something like this in your controller (note, you didn't include controller code so I don't know what your code looks like).

JavaScript

var item = {};
item.sumOfTwoVars = item.item_qty + item.product_price;

Then in your view, instead of doing {{num3}} you can then just do {{item.sumOfTwoVars}} which prevents your view from doing any manipulation/logic to render data from the controller.

Posted 21-Jun-17 8:27am

David_Wimbley

Comments

David Crow 21-Jun-17 15:37pm

I'm not sure why the Android tag is part of this question. Is that intentional?

David_Wimbley 22-Jun-17 12:16pm

I didn't do it.

Member 9983063 21-Jun-17 16:25pm

well i have tried your code when i run my app so it's not shown sum column in my application i have first paste your code in controller.js and then i paste var name in my form where i want to show this value but it's not showing

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Member 12464509 · Accepted Answer · 2017-06-21T10:27:00

hi you can try this way

create a folder and place HTML and Controller file at same place. I created folder on desktop, then First create HTML file then Create a Controller file inside desktop folder.

Step 1: to create index.html file.

open notepad and paste below code and I saved it as "index.html" :

<!DOCTYPE html>
<html>

<head>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.2.18/angular.min.js"></script>

<script src="testController.js"></script>
</head>

<div ng-app="myApp" ng-controller="testCtrl">
<table border="1">
<tr ng-repeat="item in orders">
<td>     {{item.item_qty}}     </td>
<td>     {{item.product_name}} </td>
<td>     {{item.status}}       </td>
<td>     {{item.product_price}}</td>
<td>	 Sum: {{item.item_qty + item.product_price}} </td>
  </tr>
</table>

</div>

</html>

Step 2: to create testController.js file.
open notepad and paste below code and save file as "testController.js" :

angular.module('myApp', []).controller('testCtrl', function($scope) {
     $scope.orders = [
         {item_qty:10,product_name:'Test1', status: '', product_price: 350},
         {item_qty:3,product_name:'Test2', status: '', product_price: 100},
         {item_qty:25,product_name:'Test3', status: '', product_price: 200}
     ];
 });

once both files are created then open "index.html" in browser (I used Internet Explorer). Hope this will help you..