AngularJS Directives

AngularJS facilitates you to extend HTML with new attributes. These attributes are called directives.

There is a set of built-in directive in AngularJS which offers functionality to your applications. You can also define your own directives.

Directives are special attributes starting with ng- prefix. Following are the most common directives:

  • ng-app: This directive starts an AngularJS Application.
  • ng-init: This directive initializes application data.
  • ng-model: This directive defines the model that is variable to be used in AngularJS.
  • ng-repeat: This directive repeats html elements for each item in a collection.

ng-app directive

ng-app directive defines the root element. It starts an AngularJS Application and automatically initializes or bootstraps the application when web page containing AngularJS Application is loaded. It is also used to load various AngularJS modules in AngularJS Application.

See this example:

In following example, we've defined a default AngularJS application using ng-app attribute of a div element.


ng-init directive

ng-init directive initializes an AngularJS Application data. It defines the initial values for an AngularJS application.

In following example, we'll initialize an array of countries. We're using JSON syntax to define array of countries.


ng-model directive:

ng-model directive defines the model/variable to be used in AngularJS Application.

In following example, we've defined a model named "name".


ng-repeat directive

ng-repeat directive repeats html elements for each item in a collection. In following example, we've iterated over array of countries.

AngularJS directives Example

Let's take an example to use all the above discussed directives:

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AngularJS Directives List

AnglarJS directives are used to add functionality to your application. You can also add your own directives for your applications.

Following is a list of AngularJS directives:

DirectiveDescription
ng-appIt defines the root element of an application.
ng-bindIt binds the content of an html element to application data.
ng-bind-htmlIt binds the inner HTML of an HTML element to application data, and also removes dangerous code from the html string.
ng-bind-templateIt specifies that the text content should be replaced with a template.
ng-blurIt specifies a behavior on blur events.
ng-changeIt specifies an expression to evaluate when content is being changed by the user.
ng-checkedIt specifies if an element is checked or not.
ng-classIt specifies css classes on html elements.
ng-class-evenIt is same as ng-class, but will only take effect on even rows.
ng-class-oddIt is same as ng-class, but will only take effect on odd rows.
ng-clickIt specifies an expression to evaluate when an element is being clicked.
ng-cloakIt prevents flickering when your application is being loaded.
ng-controllerIt defines the controller object for an application.
ng-copyIt specifies a behavior on copy events.
ng-cspIt changes the content security policy.
ng-cutIt specifies a behavior on cut events.
ng-dblclickIt specifies a behavior on double-click events.
ng-focusIt specifies a behavior on focus events.
ng-hideIt hides or shows html elements.
ng-hrefIt specifies a URL for the <a> element.
ng-ifIt removes the html element if a condition is false.
ng-includeIt includes html in an application.
ng-initIt defines initial values for an application.
ng-jqIt specifies that the application must use a library, like jQuery.
ng-keydownIt specifies a behavior on keydown events.
ng-keypressIt specifies a behavior on keypress events.
ng-keyupIt specifies a behavior on keyup events.
ng-listIt converts text into a list (array).
ng-openIt specifies the open attribute of an element.
ng-optionsIt specifies <options> in a <select> list.
ng-pasteIt specifies a behavior on paste events.
ng-pluralizeIt specifies a message to display according to en-us localization rules.
ng-readonlyIt specifies the readonly attribute of an element.
ng-requiredIt specifies the required attribute of an element.
ng-selectedIt specifies the selected attribute of an element.
ng-showIt shows or hides html elements.
ng-srcIt specifies the src attribute for the <img> element.
ng-srcsetIt specifies the srcset attribute for the <img> element.
ng-styleIt specifies the style attribute for an element.
ng-submitIt specifies expressions to run on onsubmit events.
ng-switchIt specifies a condition that will be used to show/hide child elements.
ng-transcludeIt specifies a point to insert transcluded elements.
ng-valueIt specifies the value of an input element.
ng-disabledIt specifies if an element is disabled or not.
ng-formIt specifies an html form to inherit controls from.
ng-modelIt binds the value of html controls to application data.
ng-model-optionsIt specifies how updates in the model are done.
ng-mousedownIt specifies a behavior on mousedown events.
ng-mouseenterIt specifies a behavior on mouseenter events.
ng-mouseleaveIt specifies a behavior on mouseleave events.
ng-mousemoveIt specifies a behavior on mousemove events.
ng-mouseoverIt specifies a behavior on mouseover events.
ng-mouseupIt specifies a behavior on mouseup events.
ng-non-bindableIt specifies that no data binding can happen in this element, or it's children.
ng-repeatIt defines a template for each data in a collection.

How to add directives

See this example:

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