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 ...

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 ...

Another new feature called ‘let’ offers a new way of defining variables in JavaScript. You’re probably used to defining them with ‘var’ but the difference is subtle: scope. When you ...

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 ...

Is there a way to generate a regex like this, while inserting that variable into it on the fly? Click to expand... It's been a while since I worked on regexs in JavaScript, but generally the way ...

The problem I have is I need to keep a LOT of numbers between refreshes, and was wondering if there is some way to mark an array variable as unrefreshable. I need to keep the data in the array to ...