`ng`

The ng module is loaded by default when an AngularJS application is started. The module itself contains the essential components for an AngularJS application to function. The table below lists a high level breakdown of each of the services/factories, filters, directives and testing components available within this core module.

Known Issues

Name	Description
angular.element	You cannot spy on `angular.element` if you are using Jasmine version 1.x. See https://github.com/angular/angular.js/issues/14251 for more information.

Module Components

Function

Name	Description
angular.forEach	Invokes the `iterator` function once for each item in `obj` collection, which can be either an object or an array. The `iterator` function is invoked with `iterator(value, key, obj)`, where `value` is the value of an object property or an array element, `key` is the object property key or array element index and obj is the `obj` itself. Specifying a `context` for the function is optional.
angular.extend	Extends the destination object `dst` by copying own enumerable properties from the `src` object(s) to `dst`. You can specify multiple `src` objects. If you want to preserve original objects, you can do so by passing an empty object as the target: `var object = angular.extend({}, object1, object2)`.
angular.merge	Deeply extends the destination object `dst` by copying own enumerable properties from the `src` object(s) to `dst`. You can specify multiple `src` objects. If you want to preserve original objects, you can do so by passing an empty object as the target: `var object = angular.merge({}, object1, object2)`.
angular.noop	A function that performs no operations. This function can be useful when writing code in the functional style. `function foo(callback) { var result = calculateResult(); (callback \|\| angular.noop)(result); }`
angular.identity	A function that returns its first argument. This function is useful when writing code in the functional style.
angular.isUndefined	Determines if a reference is undefined.
angular.isDefined	Determines if a reference is defined.
angular.isObject	Determines if a reference is an `Object`. Unlike `typeof` in JavaScript, `null`s are not considered to be objects. Note that JavaScript arrays are objects.
angular.isString	Determines if a reference is a `String`.
angular.isNumber	Determines if a reference is a `Number`.
angular.isDate	Determines if a value is a date.
angular.isArray	Determines if a reference is an `Array`.
angular.isFunction	Determines if a reference is a `Function`.
angular.isElement	Determines if a reference is a DOM element (or wrapped jQuery element).
angular.copy	Creates a deep copy of `source`, which should be an object or an array.
angular.equals	Determines if two objects or two values are equivalent. Supports value types, regular expressions, arrays and objects.
angular.bind	Returns a function which calls function `fn` bound to `self` (`self` becomes the `this` for `fn`). You can supply optional `args` that are prebound to the function. This feature is also known as partial application, as distinguished from function currying.
angular.toJson	Serializes input into a JSON-formatted string. Properties with leading $$ characters will be stripped since angular uses this notation internally.
angular.fromJson	Deserializes a JSON string.
angular.bootstrap	Use this function to manually start up angular application.
angular.reloadWithDebugInfo	Use this function to reload the current application with debug information turned on. This takes precedence over a call to `$compileProvider.debugInfoEnabled(false)`.
angular.injector	Creates an injector object that can be used for retrieving services as well as for dependency injection (see dependency injection).
angular.element	Wraps a raw DOM element or HTML string as a jQuery element.
angular.module	The `angular.module` is a global place for creating, registering and retrieving Angular modules. All modules (angular core or 3rd party) that should be available to an application must be registered using this mechanism.

Directive

Name	Description
ngJq	Use this directive to force the angular.element library. This should be used to force either jqLite by leaving ng-jq blank or setting the name of the jquery variable under window (eg. jQuery).
ngApp	Use this directive to auto-bootstrap an AngularJS application. The `ngApp` directive designates the root element of the application and is typically placed near the root element of the page - e.g. on the `<body>` or `<html>` tags.
a	Modifies the default behavior of the html A tag so that the default action is prevented when the href attribute is empty.
ngHref	Using Angular markup like `{{hash}}` in an href attribute will make the link go to the wrong URL if the user clicks it before Angular has a chance to replace the `{{hash}}` markup with its value. Until Angular replaces the markup the link will be broken and will most likely return a 404 error. The `ngHref` directive solves this problem.
ngSrc	Using Angular markup like `{{hash}}` in a `src` attribute doesn't work right: The browser will fetch from the URL with the literal text `{{hash}}` until Angular replaces the expression inside `{{hash}}`. The `ngSrc` directive solves this problem.
ngSrcset	Using Angular markup like `{{hash}}` in a `srcset` attribute doesn't work right: The browser will fetch from the URL with the literal text `{{hash}}` until Angular replaces the expression inside `{{hash}}`. The `ngSrcset` directive solves this problem.
ngDisabled	This directive sets the `disabled` attribute on the element if the expression inside `ngDisabled` evaluates to truthy.
ngChecked	Sets the `checked` attribute on the element, if the expression inside `ngChecked` is truthy.
ngReadonly	Sets the `readOnly` attribute on the element, if the expression inside `ngReadonly` is truthy.
ngSelected	Sets the `selected` attribute on the element, if the expression inside `ngSelected` is truthy.
ngOpen	Sets the `open` attribute on the element, if the expression inside `ngOpen` is truthy.
ngForm	Nestable alias of `form` directive. HTML does not allow nesting of form elements. It is useful to nest forms, for example if the validity of a sub-group of controls needs to be determined.
form	Directive that instantiates FormController.
textarea	HTML textarea element control with angular data-binding. The data-binding and validation properties of this element are exactly the same as those of the input element.
input	HTML input element control. When used together with `ngModel`, it provides data-binding, input state control, and validation. Input control follows HTML5 input types and polyfills the HTML5 validation behavior for older browsers.
ngValue	Binds the given expression to the value of `<option>` or `input[radio]`, so that when the element is selected, the `ngModel` of that element is set to the bound value.
ngBind	The `ngBind` attribute tells Angular to replace the text content of the specified HTML element with the value of a given expression, and to update the text content when the value of that expression changes.
ngBindTemplate	The `ngBindTemplate` directive specifies that the element text content should be replaced with the interpolation of the template in the `ngBindTemplate` attribute. Unlike `ngBind`, the `ngBindTemplate` can contain multiple `{{` `}}` expressions. This directive is needed since some HTML elements (such as TITLE and OPTION) cannot contain SPAN elements.
ngBindHtml	Evaluates the expression and inserts the resulting HTML into the element in a secure way. By default, the resulting HTML content will be sanitized using the $sanitize service. To utilize this functionality, ensure that `$sanitize` is available, for example, by including `ngSanitize` in your module's dependencies (not in core Angular). In order to use `ngSanitize` in your module's dependencies, you need to include "angular-sanitize.js" in your application.
ngChange	Evaluate the given expression when the user changes the input. The expression is evaluated immediately, unlike the JavaScript onchange event which only triggers at the end of a change (usually, when the user leaves the form element or presses the return key).
ngClass	The `ngClass` directive allows you to dynamically set CSS classes on an HTML element by databinding an expression that represents all classes to be added.
ngClassOdd	The `ngClassOdd` and `ngClassEven` directives work exactly as ngClass, except they work in conjunction with `ngRepeat` and take effect only on odd (even) rows.
ngClassEven	The `ngClassOdd` and `ngClassEven` directives work exactly as ngClass, except they work in conjunction with `ngRepeat` and take effect only on odd (even) rows.
ngCloak	The `ngCloak` directive is used to prevent the Angular html template from being briefly displayed by the browser in its raw (uncompiled) form while your application is loading. Use this directive to avoid the undesirable flicker effect caused by the html template display.
ngController	The `ngController` directive attaches a controller class to the view. This is a key aspect of how angular supports the principles behind the Model-View-Controller design pattern.
ngCsp	Angular has some features that can break certain CSP (Content Security Policy) rules.
ngClick	The ngClick directive allows you to specify custom behavior when an element is clicked.
ngDblclick	The `ngDblclick` directive allows you to specify custom behavior on a dblclick event.
ngMousedown	The ngMousedown directive allows you to specify custom behavior on mousedown event.
ngMouseup	Specify custom behavior on mouseup event.
ngMouseover	Specify custom behavior on mouseover event.
ngMouseenter	Specify custom behavior on mouseenter event.
ngMouseleave	Specify custom behavior on mouseleave event.
ngMousemove	Specify custom behavior on mousemove event.
ngKeydown	Specify custom behavior on keydown event.
ngKeyup	Specify custom behavior on keyup event.
ngKeypress	Specify custom behavior on keypress event.
ngSubmit	Enables binding angular expressions to onsubmit events.
ngFocus	Specify custom behavior on focus event.
ngBlur	Specify custom behavior on blur event.
ngCopy	Specify custom behavior on copy event.
ngCut	Specify custom behavior on cut event.
ngPaste	Specify custom behavior on paste event.
ngIf	The `ngIf` directive removes or recreates a portion of the DOM tree based on an {expression}. If the expression assigned to `ngIf` evaluates to a false value then the element is removed from the DOM, otherwise a clone of the element is reinserted into the DOM.
ngInclude	Fetches, compiles and includes an external HTML fragment.
ngInit	The `ngInit` directive allows you to evaluate an expression in the current scope.
ngList	Text input that converts between a delimited string and an array of strings. The default delimiter is a comma followed by a space - equivalent to `ng-list=", "`. You can specify a custom delimiter as the value of the `ngList` attribute - for example, `ng-list=" \| "`.
ngModel	The `ngModel` directive binds an `input`,`select`, `textarea` (or custom form control) to a property on the scope using NgModelController, which is created and exposed by this directive.
ngModelOptions	Allows tuning how model updates are done. Using `ngModelOptions` you can specify a custom list of events that will trigger a model update and/or a debouncing delay so that the actual update only takes place when a timer expires; this timer will be reset after another change takes place.
ngNonBindable	The `ngNonBindable` directive tells Angular not to compile or bind the contents of the current DOM element. This is useful if the element contains what appears to be Angular directives and bindings but which should be ignored by Angular. This could be the case if you have a site that displays snippets of code, for instance.
ngOptions	The `ngOptions` attribute can be used to dynamically generate a list of `<option>` elements for the `<select>` element using the array or object obtained by evaluating the `ngOptions` comprehension expression.
ngPluralize	`ngPluralize` is a directive that displays messages according to en-US localization rules. These rules are bundled with angular.js, but can be overridden (see Angular i18n dev guide). You configure ngPluralize directive by specifying the mappings between plural categories and the strings to be displayed.
ngRepeat	The `ngRepeat` directive instantiates a template once per item from a collection. Each template instance gets its own scope, where the given loop variable is set to the current collection item, and `$index` is set to the item index or key.
ngShow	The `ngShow` directive shows or hides the given HTML element based on the expression provided to the `ngShow` attribute. The element is shown or hidden by removing or adding the `.ng-hide` CSS class onto the element. The `.ng-hide` CSS class is predefined in AngularJS and sets the display style to none (using an !important flag). For CSP mode please add `angular-csp.css` to your html file (see ngCsp).
ngHide	The `ngHide` directive shows or hides the given HTML element based on the expression provided to the `ngHide` attribute. The element is shown or hidden by removing or adding the `ng-hide` CSS class onto the element. The `.ng-hide` CSS class is predefined in AngularJS and sets the display style to none (using an !important flag). For CSP mode please add `angular-csp.css` to your html file (see ngCsp).
ngStyle	The `ngStyle` directive allows you to set CSS style on an HTML element conditionally.
ngSwitch	The `ngSwitch` directive is used to conditionally swap DOM structure on your template based on a scope expression. Elements within `ngSwitch` but without `ngSwitchWhen` or `ngSwitchDefault` directives will be preserved at the location as specified in the template.
ngTransclude	Directive that marks the insertion point for the transcluded DOM of the nearest parent directive that uses transclusion.
script	Load the content of a `<script>` element into `$templateCache`, so that the template can be used by `ngInclude`, `ngView`, or directives. The type of the `<script>` element must be specified as `text/ng-template`, and a cache name for the template must be assigned through the element's `id`, which can then be used as a directive's `templateUrl`.
select	HTML `SELECT` element with angular data-binding.
ngRequired	ngRequired adds the required `validator` to `ngModel`. It is most often used for `input` and `select` controls, but can also be applied to custom controls.
ngPattern	ngPattern adds the pattern `validator` to `ngModel`. It is most often used for text-based `input` controls, but can also be applied to custom text-based controls.
ngMaxlength	ngMaxlength adds the maxlength `validator` to `ngModel`. It is most often used for text-based `input` controls, but can also be applied to custom text-based controls.
ngMinlength	ngMinlength adds the minlength `validator` to `ngModel`. It is most often used for text-based `input` controls, but can also be applied to custom text-based controls.

Object

Name	Description
angular.version	An object that contains information about the current AngularJS version.

Type

Name	Description
angular.Module	Interface for configuring angular modules.
$cacheFactory.Cache	A cache object used to store and retrieve data, primarily used by $http and the script directive to cache templates and other data.
$compile.directive.Attributes	A shared object between directive compile / linking functions which contains normalized DOM element attributes. The values reflect current binding state `{{ }}`. The normalization is needed since all of these are treated as equivalent in Angular:
form.FormController	`FormController` keeps track of all its controls and nested forms as well as the state of them, such as being valid/invalid or dirty/pristine.
ngModel.NgModelController	`NgModelController` provides API for the `ngModel` directive. The controller contains services for data-binding, validation, CSS updates, and value formatting and parsing. It purposefully does not contain any logic which deals with DOM rendering or listening to DOM events. Such DOM related logic should be provided by other directives which make use of `NgModelController` for data-binding to control elements. Angular provides this DOM logic for most `input` elements. At the end of this page you can find a custom control example that uses `ngModelController` to bind to `contenteditable` elements.
select.SelectController	The controller for the `<select>` directive. This provides support for reading and writing the selected value(s) of the control and also coordinates dynamically added `<option>` elements, perhaps by an `ngRepeat` directive.
$rootScope.Scope	A root scope can be retrieved using the $rootScope key from the $injector. Child scopes are created using the $new() method. (Most scopes are created automatically when compiled HTML template is executed.) See also the Scopes guide for an in-depth introduction and usage examples.

Provider

Name	Description
$anchorScrollProvider	Use `$anchorScrollProvider` to disable automatic scrolling whenever $location.hash() changes.
$animateProvider	Default implementation of $animate that doesn't perform any animations, instead just synchronously performs DOM updates and resolves the returned runner promise.
$compileProvider
$controllerProvider	The $controller service is used by Angular to create new controllers.
$filterProvider	Filters are just functions which transform input to an output. However filters need to be Dependency Injected. To achieve this a filter definition consists of a factory function which is annotated with dependencies and is responsible for creating a filter function.
$httpProvider	Use `$httpProvider` to change the default behavior of the $http service.
$interpolateProvider	Used for configuring the interpolation markup. Defaults to `{{` and `}}`.
$locationProvider	Use the `$locationProvider` to configure how the application deep linking paths are stored.
$logProvider	Use the `$logProvider` to configure how the application logs messages
$parseProvider	`$parseProvider` can be used for configuring the default behavior of the $parse service.
$rootScopeProvider	Provider for the $rootScope service.
$sceDelegateProvider	The `$sceDelegateProvider` provider allows developers to configure the $sceDelegate service. This allows one to get/set the whitelists and blacklists used to ensure that the URLs used for sourcing Angular templates are safe. Refer $sceDelegateProvider.resourceUrlWhitelist and $sceDelegateProvider.resourceUrlBlacklist
$sceProvider	The $sceProvider provider allows developers to configure the $sce service. enable/disable Strict Contextual Escaping (SCE) in a module override the default implementation with a custom delegate
$templateRequestProvider	Used to configure the options passed to the `$http` service when making a template request.

Service

Name	Description
$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. The default behavior is the application of DOM operations, however, when an animation is detected (and animations are enabled), $animate will do the heavy lifting to ensure that animation runs with the triggered DOM operation.
$animateCss	This is the core version of `$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.
$templateCache	The first time a template is used, it is loaded in the template cache for quick retrieval. You can load templates directly into the cache in a `script` tag, or by consuming the `$templateCache` service directly.
$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.
$exceptionHandler	Any uncaught exception in angular expressions is delegated to this service. The default implementation simply delegates to `$log.error` which logs it into the browser console.
$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.
$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. Changes to the URL in the address bar are reflected into $location service and changes to $location are reflected into the browser address bar.
$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`. The element represents the root element of application. It is also the location where the application's $injector service gets published, and can be retrieved using `$rootElement.injector()`.
$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. They also provide event emission/broadcast and subscription facility. See the developer guide on scopes.
$sceDelegate	`$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`. If the HTTP request fails or the response data of the HTTP request is empty, a `$compile` error will be thrown (the exception can be thwarted by setting the 2nd parameter of the function to true). Note that the contents of `$templateCache` are trusted, so the call to `$sce.getTrustedUrl(tpl)` is omitted when `tpl` is of type string and `$templateCache` has the matching entry.
$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.

Input

Name	Description
input[text]	Standard HTML text input with angular data binding, inherited by most of the `input` elements.
input[date]	Input with date validation and transformation. In browsers that do not yet support the HTML5 date input, a text element will be used. In that case, text must be entered in a valid ISO-8601 date format (yyyy-MM-dd), for example: `2009-01-06`. Since many modern browsers do not yet support this input type, it is important to provide cues to users on the expected input format via a placeholder or label.
input[datetime-local]	Input with datetime validation and transformation. In browsers that do not yet support the HTML5 date input, a text element will be used. In that case, the text must be entered in a valid ISO-8601 local datetime format (yyyy-MM-ddTHH:mm:ss), for example: `2010-12-28T14:57:00`.
input[time]	Input with time validation and transformation. In browsers that do not yet support the HTML5 time input, a text element will be used. In that case, the text must be entered in a valid ISO-8601 local time format (HH:mm:ss), for example: `14:57:00`. Model must be a Date object. This binding will always output a Date object to the model of January 1, 1970, or local date `new Date(1970, 0, 1, HH, mm, ss)`.
input[week]	Input with week-of-the-year validation and transformation to Date. In browsers that do not yet support the HTML5 week input, a text element will be used. In that case, the text must be entered in a valid ISO-8601 week format (yyyy-W##), for example: `2013-W02`.
input[month]	Input with month validation and transformation. In browsers that do not yet support the HTML5 month input, a text element will be used. In that case, the text must be entered in a valid ISO-8601 month format (yyyy-MM), for example: `2009-01`.
input[number]	Text input with number validation and transformation. Sets the `number` validation error if not a valid number.
input[url]	Text input with URL validation. Sets the `url` validation error key if the content is not a valid URL.
input[email]	Text input with email validation. Sets the `email` validation error key if not a valid email address.
input[radio]	HTML radio button.
input[checkbox]	HTML checkbox.

Filter

Name	Description
filter	Selects a subset of items from `array` and returns it as a new array.
currency	Formats a number as a currency (ie $1,234.56). When no currency symbol is provided, default symbol for current locale is used.
number	Formats a number as text.
date	Formats `date` to a string based on the requested `format`.
json	Allows you to convert a JavaScript object into JSON string.
lowercase	Converts string to lowercase.
uppercase	Converts string to uppercase.
limitTo	Creates a new array or string containing only a specified number of elements. The elements are taken from either the beginning or the end of the source array, string or number, as specified by the value and sign (positive or negative) of `limit`. If a number is used as input, it is converted to a string.
orderBy	Orders a specified `array` by the `expression` predicate. It is ordered alphabetically for strings and numerically for numbers. Note: if you notice numbers are not being sorted as expected, make sure they are actually being saved as numbers and not strings. Array-like values (e.g. NodeLists, jQuery objects, TypedArrays, Strings, etc) are also supported.