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 of the ...

Variables hold a wide variety of information temporarily. The JavaScript data types that can be stored in a variable include: JavaScript variables can hold a few other kinds of data, but these are by ...

What is lexical scoping (static scoping)? Lexical scoping, also known as static scoping, is a convention used with many modern programming languages. It refers to setting the scope, or range of ...