JavaScript “coerces” variables to Boolean when testing to true/false. Additionally, a variety of “falsy” and “truthy” variables exist in this vein. We’ve mentioned 0 and 1, which ...

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 ...

Coming up with good variable names can always be a challenge. So there is some convention you can follow that makes the process easier. For boolean values, you can simply prefix it with is, has, or ...

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 references ...