With apps becoming so popular, many apps are being created for similar purposes making it confusing for consumers to choose among them. In order to ensure an app’s success, AngularJS companies share that before developing any application, it is always important to use the technology stack in a beneficial way. Unless we use a technology effectively, it doesn’t count. However, some challenges may crop up, that need to be fixed, share AngularJS app development company. Let us have a look at what are some challenges that can occur and how they can be addressed.

1. Robert Johnson 21 February 2019
AngularJS Performance Tuning in Enterprise App-
2019
medium.com/@robertj5343/angularjs-performance-tuning-in-enterprise-app-2019-75c85beb37bb
Robert Johnson
Feb 21
With apps becoming so popular, many apps are being created for similar
purposes making it confusing for consumers to choose among them. In order to
ensure an app’s success, AngularJS companies share that before developing any
application, it is always important to use the technology stack in a beneficial
way. Unless we use a technology effectively, it doesn’t count. However, some
challenges may crop up, that need to be fixed, share AngularJS app
development company. Let us have a look at what are some challenges that can
occur and how they can be addressed.
ParseHTML
According to AngularJS companies, the style and layout changes are
applied by the browser in small batches. When batching is not possible,
lagging is caused making too many DOM operations are costly. A possible
solution is to write inline templates in directive’s template property.
Besides this, Angular’s built-in $templateCache can be prefilled with your
own templates. Whenever an external template is needed, the cache is
checked by angular. Many basic tasks automatically combine and minimize
the HTML templates and prefill the AngularJS $templateCache
Slow dirty checking
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2. According to AngularJS companies, Dirty Checking involves recognizing
changes and reacting to changes. When too many watchers are registered
and the complexity of the values being watched is high, recognizing
changes can be prolonged while reacting to changes can be very slow. This,
according to AngularJS companies, can be resolved by using the following
approaches:
Use unregister function to unregister all the watches after using the
watcher:
var unregisterFunction = $scope.$watch(‘namehere’, function()
{expression});
unregisterFunction ();
$watch function with 2 parameters is fast.
Angular also supports a 3rd parameter to $watch: $watch(‘val’,
function(){}, true); allowing it to perform deep checking, i.e checking
each and every property of the object, which in turn, could be more
expensive resulting in performance issue.
To solve this issue, $watchCollection(‘val’, function(){}) is added by
Angular. This method is almost similar to $watch with 3 parameters,
except that it checks only the first layer of object’s properties. This
improves the performance to a great extent.
Use isolated scopes in directives and pass only necessary
values/models.
Recalculate, cache and apply complex model changes to watch
expression.
Pre-filter large collections, using the result as a source for ng-repeat.
Only deep-watch if required. Deep-watching uses angular. Equals on
each property.
Numerous DOM operations
Accessing the DOM is expensive, according to work should be done using
as few DOM nodes as possible. Wherever possible, the DOM tree small
should be kept small, DOM modification should be avoided, inline styles
should not be set and ng-if should be used instead of ng-show/ng-hide. The
ng-show directive, share AngularJS companies, toggles CSS display property
on an element, whereas the ng-if directive removes the element from DOM
and reconstructs it if required.
Code Duplication
According to , many developers are in the habit of copying & pasting the
code for similar functionalities. Instead custom directives should be used to
create custom HTML tags, classes or attributes to execute required
functionality on an HTML section. Then it becomes a reusable and
independent component which can be embedded in HTML pages, share
AngularJS companies. Each task in a controller, should have unique
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3. responsibilities. The manner in which standard code is written, should be
such that no if -else is required in case of the module requires any
modification.
By keeping the model clean and having a minimum number of watchers,
share AngularJS companies, it is possible to optimize the app’s
performance with great ease. All the mentioned problems/solutions are
applicable for any kind of AngularJS project and can be conveniently done.
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