How to determine if the variable is undefined or null? Angular have angular.isUndefined but not angular.isUndefinedOrNull. In this post, we will show 3 ways to determine if
Tag: Javascript
Check if element is visible or hidden in jQuery?
Check if element is visible or hidden in jQuery? The below code will help to identify if the element is visible or not:
Difference between ng-if and ng-show or ng-hide?
ngIf The ngIf removes the HTML element if the expression evaluates to false. If the expression evaluates to true, a copy of element is added in the
How to Install REACTJS – Step By Step Guide
We will install react with npm. The other option is using Yarn to manage front-end dependencies. Prerequisites npm Download and run the latest MSI. Installation Create
Immediately-Invoked Function Expression ( IIFE )
It executes immediately after it’s created. It has nothing to do with any event-handler for any events (such as document.onload). The first pair of parentheses (function(){…}) turns the
What is Single Page Application (SPA) ?
Single-Page Applications (SPAs) are web applications that load a single HTML page and dynamically update that page as the user interacts with the app. SPAs use AJAX and HTML5 to create fluid and responsive Web apps,
How to pop-up print dialog box using Javascript?
You can use: window.print(); The print() method prints the contents of the current window. It opens the Print Dialog Box, which lets the user to
GruntJS – What is Task Runner ?
In one word: automation. The less work you have to do when performing repetitive tasks like minification, compilation, unit testing, linting, etc, the easier your