What are services in AngularJS?
Tags: angular, computerscience, career
Published: 2020-10-07 05:12:21

These are some of the built-in services available in AngularJS :

$anchorScroll - When called, it scrolls to the element related to the specified hash or (if omitted) to the 

current value of $location.hash(), according to the rules specified in the HTML5 spec.

$animate - The $animate service exposes a series of DOM utility methods that provide support for animation hooks.

$animateCss - This is the core version of $animateCss. By default, only when the ngAnimate is included, then the 

$animateCss service will actually perform animations.

$cacheFactory - Factory that constructs Cache objects and gives access to them.

$templateCache - The first time a template is used, it is loaded in the template cache for quick retrieval.

$compile - Compiles an HTML string or DOM into a template and produces a template function, which can then be 

used to link scope and the template together.

$controller - $controller service is responsible for instantiating controllers.

$document - A jQuery or jqLite wrapper for the browser's window.document object.

$exceptionHandler - Any uncaught exception in angular expressions is delegated to this service.

$filter - Filters are used for formatting data displayed to the user.

$httpParamSerializer - Default $http params serializer that converts objects to strings according to the 

following rules:

$httpParamSerializerJQLike - Alternative $http params serializer that follows jQuery's param() method logic. The 

serializer will also sort the params alphabetically.

$http - The $http service is a core Angular service that facilitates communication with the remote HTTP servers 

via the browser's XMLHttpRequest object or via JSONP.

$xhrFactory - Factory function used to create XMLHttpRequest objects.

$httpBackend - HTTP backend used by the service that delegates to XMLHttpRequest object or JSONP and deals with 

browser incompatibilities.

$interpolate - Compiles a string with markup into an interpolation function. This service is used by the HTML 

$compile service for data binding. See $interpolateProvider for configuring the interpolation markup.

$interval - Angular's wrapper for window.setInterval. The fn function is executed every delay milliseconds.

$jsonpCallbacks - This service handles the lifecycle of callbacks to handle JSONP requests.

$locale - $locale service provides localization rules for various Angular components. As of right now the only 

public api is:

$location - The $location service parses the URL in the browser address bar (based on the window.location) and 

makes the URL available to your application.

$log - Simple service for logging. Default implementation safely writes the message into the browser's console 

(if present).

$parse - Converts Angular expression into a function.

$q - A service that helps you run functions asynchronously, and use their return values (or exceptions) when they 

are done processing.

$rootElement - The root element of Angular application. This is either the element where ngApp was declared or 

the element passed into angular.bootstrap.

$rootScope - Every application has a single root scope. All other scopes are descendant scopes of the root scope. 

Scopes provide separation between the model and the view, via a mechanism for watching the model for changes.

$sceDelegate - $sceDelegate is a service that is used by the $sce service to provide Strict Contextual Escaping 

(SCE) services to AngularJS.

$sce - $sce is a service that provides Strict Contextual Escaping services to AngularJS.

$templateRequest - The $templateRequest service runs security checks then downloads the provided template using 

$http and, upon success, stores the contents inside of $templateCache.

$timeout - Angular's wrapper for window.setTimeout. The fn function is wrapped into a try/catch block and 

delegates any exceptions to $exceptionHandler service.

$window - A reference to the browser's window object. While window is globally available in JavaScript, it causes 

testability problems, because it is a global variable. In angular we always refer to it through the $window 

service, so it may be overridden, removed or mocked for testing.

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