JavaScript

How to check if same URL is open in another tab?

It is important to be able to detect whether the same URL is already open in another tab. In this article, we will explore how to check if the same URL is open in another tab.

JavaScript

How to detect if user changes tab in browser?

In this article, we will discuss how to use the Page Visibility API to detect tab changes in HTML and JavaScript.

JavaScript

Empty / Undefined / Null in JavaScript

In this article, we will learn the concept of empty, undefined and null in JavaScript and how to use JavaScript to check the Empty, Null and Undefined string on the client/user side for authentication purpose.

JavaScript

User Input in JavaScript

In this article, we will explore the basics of user input in JavaScript and how it can be used to create dynamic and interactive web applications.

HTML

Different ways to Redirect a webpage

In this article at OpenGenus, we have explained how to redirect a webpage using JavaScript and natively in HTML. We have developed demos to demonstrate the ideas with code examples.

JavaScript

Objects in JavaScript [Practical Guide]

Detailed article on object creation, access methods and various built-in methods of object in JavaScript.

JavaScript

Detecting key press in JavaScript

Detecting key presses in JavaScript can be very useful for many applications, including games, text editors, and form input validation. In this article, we will explore the different ways of detecting key presses in JavaScript with code snippets and images.

JavaScript

Calendar with JavaScript

We can do so many things with the JavaScript programming language and I enjoy building things with it, this time, I made a calendar of 12 months. I will walk you through the steps on how I created this calendar using JavaScript.

JavaScript

Built-in Hash Table in JavaScript

In this article, we will explore how hash tables work in JavaScript, with examples and tips. Built-in Hash Table in JavaScript involve using a Map with 2 key methods set and get.

JavaScript

Calculator with JavaScript

In this article, I will explain the steps on how I created a calculator with JavaScript with User Interface using HTML and CSS.

HTML

Delete an element in HTML DOM [3 ways]

Deleting an element from HTML DOM can be accomplished in a variety of ways, depending on the task at hand. In this article, we will explore different ways to delete an element in HTML DOM.

JavaScript

Tracking cursor using JavaScript

In this article, I will show you how to keep track of the cursor position with a timestamp and download the data into a text file.

JavaScript

Stopwatch application in HTML/ JavaScript

In this article, we will create a stopwatch/ countdown timer using JavaScript. Basically what we need is a HTML CSS and JavaScript file. The Stopwatch uses three buttons which are Start, Pause and Reset.

JavaScript

Progress Bar with JavaScript

In this article, I will walk you through how I created a simple progress bar with JavaScript.

JavaScript

Different ways to delete elements in an array in JavaScript

In this article, we will explore 5 different ways to delete elements in an array in JavaScript Programming Language.

JavaScript

Text Editor in JavaScript

In this article, we have implemented a complete text editor with multiple formatting features in HTML, CSS and JavaScript. This is a strong project for Web Developer Portfolio.

JavaScript

2048 game using JavaScript

In this article, we have demonstrated how to develop web version of 2048 game using JavaScript, HTML and CSS. This is a good project for a Web Developer Portfolio.

JavaScript

Snake Game Using JavaScript

In this article, we have explained how to build Snake game using HTML, CSS and JavaScript. This is a strong web development project to work on and is a good addition to Web Developer Portfolio.

JavaScript

Detect Ctrl+C and Ctrl+V using JavaScript

In this article, we have explained with code examples how to detect the key presses Ctrl + C and Ctrl + V using JavaScript on a webpage. The two keypresses are mainly used for Copy and Paste.

JavaScript

Disable Text Selection, Copy, Cut, Paste and Right-click in JS (JavaScript)

In this article, we will explored how to disable Text Selection, Copy, Cut, Paste and Right-click in JS (JavaScript) with example code and a interactive demo.

Algorithms

Two pointer technique in JavaScript

The two pointer technique is one of the tools to solve competitive programming and to solve technical interviews. We have explained how to use it in JavaScript.

JavaScript

React Components

React has a component based architecture. This lets the developer to break down the application into small encapsulated components, which can then be composed to make complex UIs.

JavaScript

Chrome Extensions Interview Questions

In this article, we have presented Chrome Extensions Interview Questions along with detailed answers.

JavaScript

TypeScript Tutorial

Typescript introduces static typing to JavaScript, but it's not clear what this implies until one understands what static typing is all about.

JavaScript

Get IP address using JavaScript

In this article, we have explained the approach to get IP addresses using JavaScript.