Category: JavaScript

Generate a Hash from a String in JavaScript Hashing is a common technique used in computer science to convert data into a fixed-size value. It is often used to securely store passwords, verify data integrity, and more. In JavaScript, there are several ways to generate a hash from a string. In this article, we will…

How can I get the last characters of a string? When working with JavaScript, there may be times when you need to extract the last characters of a string. Whether you want to display a specific portion of a string or perform some manipulation, there are multiple ways to achieve this. In this blog post,…

Why does JavaScript only work after opening developer tools in IE once? If you’ve ever encountered a situation where your JavaScript code only seems to work in Internet Explorer (IE) after opening the developer tools, you’re not alone. This behavior can be frustrating and puzzling, but fear not, there are a few reasons why this…

When working with forms in JavaScript, it is common to have buttons that perform actions other than submitting the form. However, by default, all buttons within a form element will trigger the form submission when clicked. This can be problematic if you want to prevent the form from being submitted when a specific button is…

How to make JavaScript execute after page load? JavaScript is a powerful language that allows developers to add dynamic functionality to web pages. However, sometimes it is necessary to ensure that JavaScript code is executed only after the page has finished loading. This can be particularly important when working with elements that need to be…

What’s the difference between “Array()” and “[]” while declaring a JavaScript array? When it comes to declaring an array in JavaScript, you might have come across two different syntaxes: Array() and []. While both can be used to create arrays, there are some key differences between them. In this article, we will explore these differences…

What is the difference between String.slice and String.substring? When working with JavaScript, you may come across situations where you need to extract a portion of a string. JavaScript provides two methods for this purpose: slice and substring. While both methods achieve the same result, there are some differences in their behavior that you should be…

JavaScript is a powerful and versatile programming language that is widely used in web development. However, one concern that developers often have is how to protect their JavaScript code from being easily readable or reverse-engineered. In this article, we will explore different methods to obfuscate and protect JavaScript code. 1. Minification Minification is the process…

JavaScript is a powerful programming language that is widely used for web development. However, one common question that often arises is whether JavaScript has a “null coalescing” operator similar to other programming languages like PHP or C#. In this blog post, we will explore this question and discuss the different approaches you can take to…

How can I unset a JavaScript variable? As a JavaScript developer, you may come across situations where you need to unset or delete a variable. While JavaScript doesn’t have a built-in unset function, there are a few ways to achieve this. In this article, we will explore three different methods to unset a JavaScript variable.…