All JavaScript programming happens in an environment like a web browser, Node, or Bun.js. Each of these environments has its own set of pre-defined variables like window and console.

As with almost every programming language, JavaScript treats various types of values differently. A string like “Hello world” is very different from a number like 42. But what types are available, and ...

Nowadays JavaScript has three different keywords to declare a variable — var, let and, const. Each has its own properties and particularities. Let’s start by making a simple comparison table ...

Although variables are as old as programming itself, they’re still a key concept in modern JavaScript. To start, consider that we prefer const over let in JavaScript programming.

Camel case vs. snake case in JavaScript When browser-based programming with HTML and JavaScript first emerged, snake case was a common approach to variable and method naming. But as object-oriented ...