Angular is one of the most popular JavaScript frameworks, which offers myriad benefits to businesses worldwide. Most businesses prefer using Angular for mobile app development. Numerous giants in the corporate world have used Angularjs app development services for a wide range of projects. Take a look at some examples:
- Video-streaming applications
like NetFlix and YouTube
- Online Payment application like
PayPal
- Travel application like JetBlue
- A User-review application like
GoodFilms
- eCommerce applications like
Land send, iStock, etc.
- Job-portal like Upwork
Moreover, it is being predicted that Angular’s
demand is going to rise further in the coming years. We can see that
Angular’s future looks bright.
But despite the ever-increasing demand and
popularity, there are some flaws in this framework like any other framework As
such, developers tend to commit certain errors that may ruin your project. So,
Angular developers and Angular development services must be aware of these
common development blunders so that they are able to create top-grade applications.
In this blog, we have outlined the most
common mistakes committed by Angular developers during the mobile app development
process. So let’s get started.
Noteworthy Mistakes that Angular App
Developers tend to commit
Direct Manipulation of DOM
A common blunder that the developers tend
to commit is making changes directly in the DOM. While changing the titles in
pages or adding images, some developers may make modifications directly in DOM.
But it is considered a bad practice. The DOM is a browser-specific
API. It may tightly couple the Angular app’s code with the browser and this
won’t allow the developers to target any other rendering environment later.
Lack of knowledge of Important Tools
Knowledge of the important Angular tools is
a basic requirement that an Angular app development company must look for while
hiring developers.
Effective usage of the available Angular
development tools like Protractor
and TestWhizin Angular helps in successful project development. Lack of knowledge
on any of these tools or inability to use them can result in critical issues
sooner or later. It affects project management, error handling in the project,
the performance of the end product, and much more.
Improper Code-organization
In Angular, organizing the code into small
chunks is considered beneficial as it simplifies the development process and
also helps to track any errors and resolve them easily. This approach is much
useful when several developers work on the same project. But since this framework
uses MVC architecture, at times the developers may add excessive code to a
single controller. Such an improper distribution of code may create issues in
the later stages of development.
Cleaning
up the Subscriptions
Unsubscribing to the unnecessary and older
subscriptions is also a vital step in Angular development. The developers must
clean up such subscriptions from time-to-time as these can cause a threat to
data security and lead to several other issues. They should also avoid new subscriptions
constantly.
Declaring
Functions Incorrectly
Sometimes, the developers fail to assign
the functions to a specific variable. In such cases, the code is at risk of
being manipulated. So, it is essential to properly declare functions to the
variables. It provides the following benefits:
- Makes the code neat and
maintainable
- Allows easy splitting of files
- Eases out the testing and
maintenance process
Not using the controller AS Syntax
For assigning a model to the controller
object, usually, the developers use $scope. But injecting the scope isn’t the
right way to do it. Instead, using the controller as syntax is quite an
effective and comparatively simpler method. Also, this syntax can be used in
multiple ways in app development. But this syntax also has a drawback, that it
provides confusing results while handling various nested scopes.
Unnecessary Use of jQuery
jQuery is commonly used for event-handling,
for AJAX operations, and for making DOM manipulation easier. But it is
advisable to first use the features
available in Angular to the fullest and then use jQuery if required.
Developers tend to first prefer jQuery without exploring options in Angular and
this may result in unnecessary complications.
Improper Scope Binding
As we know, Angular uses the MVC model.
Here, the scope is a set of built-in objects that consists of app data. Scope
binds controller and view in the MVC model. At times, developers don’t follow
the scoping rules provided by Angular which may result in issues in the app
development process. The developers must properly assemble their scope objects.
Not using the Extension- Batarang
Batarang
is a highly advantageous Google Chrome extension that aids in the development
as well as the debugging process. But this extension is often ignored by the
developers and not used to its fullest potential.
Putting too many Tasks for the
Controllers
In the hurry to meet deadlines, developers
may mix logic layers and allocate more tasks to controllers than necessary.
This can result in a code that will execute more functions for a certain
situation and may end-up in performance issues. For instance- having several
event handlers or performing AJAX calls in controllers.
Ignoring Pre-launch testing
Needless to say, it is imperative to do
adequate testing before an app is launched in the market. The app should be
tested in cross browsers and different environments using tools like
BrowserStack or LambdaTest if required. This helps in identifying the bugs if
any. These bugs can be worked upon to deliver a successful app. Failing to do
so can reduce the success rates to a great extent.
A few more Considerable Mistakes in
Angular Development
- Failing to use the
event-handlers properly
- Not optimizing the Angular app
- Using the Isolated scope
directives more than required, which results in several errors.
- Using more Watchers than
needed.
- Heavy processing, that can lead
to a frozen browser.
- Overusing the Resolves that can
increase loading times and slow down the app.
Final words:
In an Angular development company, it is
quite normal for the developers to make some mistakes while building apps.
Sometimes it is due to negligence, sometimes it is due to lack of experience
and sometimes it is due to pressing timelines. Even experienced Angular
developers tend to make critical mistakes at times during Angular mobile and
web app development. But the knowledge of these errors and mistakes in advance
can curtail them to a great extent and lead to time-saving and better app
performance as well.
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