Introduction

In this article, you will learn about Currency Filter in AngularJS.

AngularJS 

AngularJS is a JavaScript framework. It was originally developed by Hevery and Adam Abrons. Now it’s maintained by Google. AngularJS is lightweight and easy to learn. It is perfect in Single Page Application projects. AngularJS is open source, free of cost, and easy to handle.

Currency Filter

One of the filters in AngularJS is called the Currency Filter. This “currency” filter includes the “$” Dollar Symbol as default. So, we can use the following code for the HTML template format of Currency Filter.

{{ currency_expression | currency : symbol : fractionSize}}

Code 

HTML

The following HTML code contains the root directory “ng-app” and Controller “ng-controller”. So you can create any name for it. The AngularJS currency filter contains the “$” Dollar symbol as default.

<div ng-app="CurrencyApp" ng-controller="CurrencyController">
   <input type="number" ng-model="amount">
   <h2>{{ amount | currency }}</h2>
</div>

AngularJS

When we run the following code we will get the result as “$1000”. So you can change this “$” Dollar symbol based on the HTML template format of Currency Filter.

var myApp = angular.module('CurrencyApp', []);
myApp.controller('CurrencyController', function($scope) {
  $scope.amount = 1000;
});

Demo: https://jsfiddle.net/rajeeshmenoth/g5n2x6c6/1/

Removing Default Symbol of Currency Filter

HTML

In the following code value = “ ” , so the default Symbol “$” Dollar will be removed.

<div ng-app="CurrencyApp" ng-controller="CurrencyController">

   <input type="number" ng-model="amount">
   <h2>{{ amount | currency : value="" }}</h2>
   <!-- or-->
   <h2>{{ amount | currency : "" }}</h2>

</div>

Demo: https://jsfiddle.net/rajeeshmenoth/g5n2x6c6/2/

List of Countries and Their Currency Using AngularJS

HTML

The following code contains the currency symbol for respective countries.

<h3>Countries & Their Currency Using AngularJS</h3>
<div ng-app="CurrencyApp" ng-controller="CurrencyController">
  <input type="number" ng-model="amount">
<h3>
   Removed default currency($) :  {{ amount | currency : "" }}  
</h3>
<h3>
   Default currency($) :  {{ amount | currency }}  
</h3>
<h3>
   Indian Currency: {{amount | currency:"&#8377"}}
</h3>
<h3>
   US Dollar - USD :  {{ amount | currency : "$" }}  
</h3>
<h3>
   United Kingdom Pound - GBP : {{amount | currency:"£"}}
</h3>
<h3>
   Thailand Baht - THB : {{amount | currency:"฿"}}
</h3>
<h3>
   China Yuan Renminbi - CNY : {{amount | currency:"¥"}}
</h3>
<h3>
   Costa Rica Colon - CRC : {{amount | currency:"₡"}}
</h3>
<h3>
    Ukraine Hryvnia - UAH  : {{amount | currency:"₴"}}
</h3>
</div>

AngularJS

var myApp = angular.module('CurrencyApp', []);
myApp.controller('CurrencyController', function($scope) {
  $scope.amount = 1000;
});

Demo: https://jsfiddle.net/rajeeshmenoth/g5n2x6c6/5/

Fraction Size in AngularJS Currency Filter

We can use the fraction size in currency filter.The following code we added 3 as the fraction size so it added 3 zeros in result.

HTML

<h3>Fraction Size In AngularJS Currency Filter</h3>

<div ng-app="CurrencyApp" ng-controller="CurrencyController">
  <input type="number" ng-model="amount">
<h3>
    Amount :  {{ amount | currency : "$" : 3 }}  
</h3>
</div>

Demo: https://jsfiddle.net/rajeeshmenoth/g5n2x6c6/6/

References

https://docs.angularjs.org/api/ng/filter/currency

http://www.w3schools.com/angular/angular_filters.asp

Summary

We learned how to use the Currency Filter in AngularJS. I hope this article is useful for all beginners.