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 ...

Unlike strongly typed programming languages such as C#, JavaScript is loosely typed and allows you to assign any data type to a variable without giving the variable a specific type. In JavaScript ...

Abstract: Variables are made to receive values directly or through evaluated expressions compounding values and operators or results of function calls: the value is stored internally and the variable ...

Hoisting is JavaScript's default behavior of hoisting declarations to the top of the current scope Hoisting applies to variable declarations and to function declarations Always declare your local ...