freeCodeCamp/guide/english/angularjs/index.md

title
AngularJS

AngularJS

AngularJS is an open source front-end JavaScript framework. AngularJS extends HTML to develop rich and powerful front-ends. It reduces the repetitive use of HTML code. This repetition can be avoided by using the directives provided by AngularJS which saves much time and effort.

AngularJS Expressions

• Expressions can be written inside double braces: {{ expression }}
• Expressions can also be written inside a directive: ng-bind="expression"
• AngularJS will resolve the expression, and return the result exactly where the expression is written
• Expressions are much like JavaScript expressions: They can contain literals, operators, and variables.

Example:

{{ 5 + 5 }} or {{ firstName + " " + lastName }}

Install:

npm:

npm install angular

HTML:

<script src="/node_modules/angular/angular.js"></script>

bower:

bower install angular

HTML:

<script src="/bower_components/angular/angular.js"></script>