AngularJS Debugging Tips & Tricks

If you have a desire to create a unique and spectacular website or landing page, based on the WordPress, Drupal or Joomla platforms, you obviously need to discover more about AngularJS.

AngularJS is a framework connects HTML and JavaScript models. It’s some kind of revolutionary software solution, developed by Google. This web app fits users, who adore quick, effective and practical working process.

How to debug AngularJS, which actual tools you should use and how to run a program in the real time? Look for developer’s tips below.

JavaScript – the main key to understanding AngularJS

AngularJS framework was created in 2009 by Brat Tech LLC and has the similar features as other JavaScript applications. Application working mechanism is based on prototypical inheritance. Methods of working are handy and flexible for developing.

By understanding well-known JavaScript framework under Angular’s cover, mark the time it takes to debug your code base.

Inheritance in JavaScript tutorial is different from inheritance in programming languages like Java or C#.

Are you going to debug AngularJS? How to do it quickly

Basic building components of AngularJS framework are controllers, filters, services, models and views. There are 3 simple debugging methods:

  1. Debugger

For debug your AngularJS use applications from the Google Chrome web store or official apps from the sites. While you using Chrome try shortcut with special developer tools. Find necessary element, click on it in the browser menu, and select needful element. Now you are inside the service.  Call the “debugger” and freeze application in a correct way.

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When debugging process of the application code is finished, make sure, you removed this line to prevent your browser freezing, even in production.

  1. Console

Chrome has nice shortcuts for the debugging different apps from the console.

You can inspect and control Angular application, calling JavaScript console, it’s pretty easily to testing. Here are 4 main debugging steps of the AngularJS, using a console:

  • get access to scopes;
  • check the scope tree;
  • access controller for directive;
  • use shortcuts for a debugging app in the Chrome.
  1. Controller

Sometimes you may want to monitor the values in ngModel when you are writing a directive. Use controller model for checking necessary features and formats.

This may seem obvious, but we often forget about it. If you need to figure out which controller is responsible for a section of the page, just look for the ng-controller attribute in the DOM. If you don’t see one, go up one level and look again.


Tools for debugging of the AngularJS

Look for 4 effective debugging tools below! All of them have their specific features, what tool will you choose?

  • Angular Batarang official extension is one of the last released tools for the Angular apps. This extension allows to user look at scopes, dependencies and other significant key metrics in Angular apps. To install Batarang download the application from the
  • Ng-inspector an extension for Chrome, Firefox and Safari browsers. It helps you understand and develop your AngularJS framework and makes the debugging process much easier and mobile.
  • Firebug – extension for the Firefox. Edit, debug, and monitor CSS, HTML, and JavaScript on the web pages, by using this extension.
  • AngScope – not the official extension of the Firebug for Firefox. It allows you to track scope, which binds to the DOM element.

AngularJS framework is magically in usage and has its own wisdom – every part of the code should be testable, reserved and reusable. Increase your analytical skills, reusability and productivity, an application is working quickly and correctly.

Now you know all debugging tricks of the Angular framework. With them you can access the data for any scope on the page and inspect its hierarchy and control directives.

Enjoy your development!

@YanaYagori, 2016

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