What are expressions in AngularJS? Give the syntax with example.

Answer 1

AngularJs Expressions

Expressions are used to bind application data to html. Angular expressions are unit of code which resolves to value. The code is written inside double curly braces : {{ expression }}. AngularJS expressions can also be written inside a directive: ng-bind="expression". AngularJS application expressions are pure javascript expressions and outputs the data where they are used.

Answer 2

Expressions in AngularJS are just like JavaScript code snippets. JavaScript code is usually written inside double braces: {{expression}}. In other words, Angular Expressions are JavaScript code snippets with limited sub-set. Expressions are included in the HTML elements.

Like JavaScript expressions, AngularJS expressions can also have various valid expressions. We can use the operators between numbers and strings, literals, objects and arrarys inside the expression {{ }}. For example,

{{ 2 + 2 }} (numbers)
{{Name + " " + email}} (string)
{{ Country.Name }} (object)
{{ fact[4] }} (array)

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