JavaScript is a versatile programming language that offers a lot of flexibility to developers. However, there is one feature of JavaScript that can cause some confusion when it comes to loops and scoping. In this article, we will explore this feature and provide some tricks to work around it using var and let declarations. Let’s start with an example: const operations = [] for (var i = 0; i < 5; i++) { operations....
In frontend development, there are several terms that may be unfamiliar to you. This glossary provides explanations of these terms to help you better understand JavaScript and frontend development concepts. Let’s dive in! Terms Asynchronous Asynchronous code allows you to initiate a task, forget about it, and receive the result when it’s ready, without having to wait for it. An example is an AJAX call, where you can continue with other tasks while waiting for the response....
When should you use let over var? And why? Let’s find out! In modern JavaScript, there are three ways to declare a variable and assign it a value: const, let, and var. When it comes to working with variables in JavaScript, my default choice is always const. It guarantees that the value cannot be reassigned, making it a safer option. However, when there is a need to redeclare a variable later on, I always use let....