Category Archive for "Javascript"

How to check if an array includes a value in JavaScript?

Arrays are a fundamental data structure in JavaScript, and often we need to check if a specific value is present in an array. In this article, we will explore different approaches...

Selecting and Manipulating CSS Pseudo-Elements with JavaScript

When working with CSS, you may come across pseudo-elements such as ::before and ::after. These pseudo-elements allow you to insert content before or after an element's actual conte...

Sorting an array of objects by property values

If you have an array of objects in JavaScript and you want to sort them based on a specific property value, there are a few different ways to accomplish this. In this article, we w...

Understanding JavaScript's Automatic Semicolon Insertion (ASI)

JavaScript has a feature called Automatic Semicolon Insertion (ASI) which automatically inserts semicolons in certain cases. This feature can sometimes lead to unexpe...

Understanding DOM Event Delegation in JavaScript

Event delegation is a widely used technique in JavaScript for handling events efficiently and improving performance. It allows you to attach a single event listener to a parent ele...

jQuery Ajax File Upload

File upload is a common functionality in web development, and jQuery provides a convenient way to accomplish this using AJAX requests. In this article, we will explore how to perfo...

jQuery Ajax POST example with PHP

In web development, it's common to encounter situations where you need to send data from a form to a server without causing the browser to redirect. With the help of jQuery and Aja...

How to Solve the 'No Access-Control-Allow-Origin' Error when Fetching Data from a REST API

If you've encountered the error message "No 'Access-Control-Allow-Origin' header is present on the requested resource" while trying to fetch data from a REST API, you're not alone....

Find object by id in an array of JavaScript objects

When working with JavaScript arrays and objects, it is common to encounter situations where you need to find an object within an array based on a specific property, such as an id....

event.preventDefault() vs. return false: Which is the Better Way to Stop Event Propagation?

Event propagation is a fundamental aspect of web development, especially when dealing with user interactions and event handling. When a certain event is triggered, su...