Default value if var is undefined When a variable is declared but not assigned any value, it's default value is undefined. This can happen when you forget to initialize a variable or when a function returns undefined. It's important to handle undefined values in your code

How to Check Image Resolution in Javascript Checking image resolution is an important task for web developers. It helps to ensure that the images are of the correct size and quality, which can impact the overall user experience of a website. In this post, we will discuss how to check

Node.js: Creating a Buffer from a String In Node.js, a buffer is a temporary holding spot for data that is being moved from one place to another. Buffers can be created from various types of data, including strings. In this blog post, we will explore the different ways

How to Get tagName by Clicking on Elements? If you want to get the name of the tag of an HTML element by clicking on it, you can use JavaScript to achieve this. The tagName property returns the name of the tag of an element. Here are two ways to

Have you ever clicked on a link expecting to see something interesting, only to be greeted by the catchy tune of Rick Astley's 1987 hit "Never Gonna Give You Up"? If so, you've been "Rick Rolled" – a playful internet prank that'

How to Add a Drop-Down List in jQuery Adding a drop-down list to your website allows users to select a value from a list of options. In this tutorial, we will show you how to add a drop-down list in jQuery. Step 1: Create a Select Element The first step

Javascript Print to PDF If you are looking for a way to print your web page or document as a PDF in Javascript, there are several ways to do it. Using jsPDF Library One of the most popular libraries for creating a PDF from HTML in Javascript is jsPDF. It

Using Promise.all() with async and await to run in console As a web developer, I have used Promise.all() with async and await to handle multiple asynchronous operations concurrently. This method returns a single Promise that resolves when all the promises in the iterable argument have resolved or rejects

Lazy Image Loading in Vue Lazy loading is a technique that defers loading of non-critical resources at page load time. Lazy loading images can significantly reduce initial page load time and page weight, and lower the number of HTTP requests made by the browser. In Vue, there are two ways

Split() JS Split() is a built-in JavaScript method that allows you to split a string into an array of substrings based on a specified separator. This method is particularly useful when working with strings that contain multiple values separated by a certain character or sequence of characters. Syntax The syntax