Overview: Strong fundamentals in data types, scope and closures boost interview performance.Understanding promises and event ...

Environment Variables are responsible for storing information about the OS’s environment. Different apps and programs require different configurations and it is the job of Windows to ensure that each ...

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 ...

This post is mainly about scope in vanilla JavaScript and the different ways it can be used to our advantage. There are a lot of ways to look at the scope to try and better understand it, my brain ...

** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. ** These first variables were ...

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 ...

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 ...

In Functional Scope the variables declared inside a function is accessible only inside that function or to other functions which are declared inside the said function. These variables are known as ...