How to determine if the variable is undefined or null in JavaScript? The easiest way is to check if the variable is

How to determine if the variable is undefined or null in JavaScript? The easiest way is to check if the variable is
AngularJS directives are used to extend HTML. In simple words, AngularJS are DOM Manipulator that tells AngularJS’s HTML compiler ($compile
) to provide a specific behavior to DOM element (such as
While working with Javascript sometimes you have to check if a Javascript object/array is empty or it contains some keys/objects. To check if JavaScript Array
DOM is stand for Document Object Model. Which is mainly responsible for creating structured components and designing your web page. The HTML DOM is an accepted
There are 3 types of ways, you can declare CSS in your application. Inline CSS Internal CSS External CSS Now let’s understand each one by
Main difference between var and let is Scoping. var keyword: var declare variable and optionally initialize the variable to a value. Syntax: var declarations, wherever it
Compile function: During compile phase Angular compiles your directive. this function is called only once for each references to the directive. Eg. You are using
Semantic elements defines “elements with a meaning.” With HTML5, There are few elements added to the HTML5 tag libraries and as element name defines the