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 ...

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 ...

Love it or loathe it, JSX has made a big impact on front-end engineering. Here's a code-first intro to the HTML-based JavaScript templating language. JSX is a way to write HTML inside of JavaScript, ...

Performing JavaScript addition may seem like a simple task, until you discover the number of different ways you can add them. Mathematical calculations are often critical operations that require ...

Developers who have built any size Website have had this problem: when you need to change one of your brand’s colors it’s no easy feat, requiring a risky search and replace or hunting down every ...