Hii,

This blog is in continuation with my previous blog on directives in angularJs, in this blog,  I will discuss expressions in angularJs.

• In angularJs  "Expression"  are used to bind data to HTML.
• Expression were written inside two curly braces,and contain operators, variables, and literals.

Syntax:{{ expression }}

• As we know angularJs is a framework of javascript,many similarities are there like angularJs expressions are also very similar to javascript expressions.
• Basically, angularJs is an efficient and easy way or method to use JavaScript functionalities, such as operators, variables, conditions etc to HTML.

Example:

We can use angularJs expressions when we want to assign any string value dynamically using an Angular directive .
In this example, a string value is added.

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<div ng-app ng-init="name='Pinky'">
My name is {{ name }}
</div>

<div ng-app ng-init="name='Pinky'">
My name is {{ name }}
</div>

Output

My name is Pinky

Example: 

We can use angularJs expressions when we want to assign any number dynamically using an Angular directive.
In this example a numeric value is added,Numeric values can also be a decimal values.

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<div ng-app>
I have total Rs{{3000}} in my pocket.
</div>

<div ng-app>
I have total Rs{{3000}} in my pocket.
</div>

Output

I have total Rs3000 in my pocket.

Note:Must inclue this link in your document when you are using angularjs
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>