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This tutorial will show you how to sort arrays in the JavaScript programming language with the array sort() method and provide some code examples. What is an Array in JavaScript? An array is a type of JavaScript variable that can hold a series of variables, references to variables, or values. It’s like a list of items. Each item or element in the array has a value and a position. The position is the order the element appears in the array and is called the index. Indexes are zero-indexed – meaning … Read more

This article will explain floating-point numbers and how to convert values to floating-point numbers using parseFloat() in JavaScript. Looking to convert to an integer value instead – use parseInt()! What is a Floating Point Number? In programming, a floating-point number (commonly just called a float) is a number with any number of characters before or after a decimal point. A floating-point number might look something like this: 14.392 A floating-point number or float is also a type of variable. A variable’s type determines what kind of values it can store and what can be done with the variable … Read more

This article will show you how to create and consume Enums in JavaScript. Unfortunately, javaScript does not include native support for Enums, but you can add comparable functionality yourself. Note that TypeScript, a language that builds on JavaScript, does include support for Enums natively. So we’re only looking at plain JavaScript here – not TypeScript. What is an Enum? An Enum (Enumerated Type) is a data structure containing multiple values. Each value is assigned to an identifier – and can be accessed by that identifier. Enums contain pre-defined constants … Read more

This short tutorial aims to get you started creating and using JavaScript modules and provides some simple examples. What is ES6? JavaScript’s official name is actually ECMAScript, and version 6 introduced module functionality to create and consume modules, so you might see JavaScript Modules referred to as ES6 or ES2015 Modules. What is a JavaScript Module? As you get more adventurous with your JavaScript programming projects and your code becomes more complex, it might start to become harder to manage. One way of mitigating this is splitting … Read more

This article will discuss the differences between typescript and JavaScript, the problems they solve, and which is best to use. I really like TypeScript, and I use it a lot. It solves so many of JavaScript’s problems and makes writing good JavaScript code much easier (once you’ve learned to use TypeScript). So, this article is more about why you should use TypeScript (when you can use it), when/where you can use it, and the problems it solves. This article goes well with the following articles, giving you an … Read more

let, var, and const are all JavaScript statements that assign a value to a variable. Their behavior can differ depending on how and where they are used in your code – read on to find out the details. Scopes in JavaScript As you start to build more complex applications, you’ll start to see a lot of talk about scopes. A variable’s scope defines where it is available in your application. Global Scope (Global Variables) If a variable is in the global scope, it is available anywhere in your application. It can be called … Read more