JavaScript

How to Select from a JavaScript Weighted List (NodeJS, Browser)

How to Select from a JavaScript Weighted List (NodeJS, Browser)

This article covers how to select a random item from a weighted list in JavaScript. It also contains an example of how to test and visualize the results using the command line or the browser. Step 1. Create a project To get started, create a new project. On a Mac

How to Select a JavaScript Random Array Item (NodeJS, Browser)

How to Select a JavaScript Random Array Item (NodeJS, Browser)

This article covers how to select a random item from an array in JavaScript. It also contains an example of how to test and visualize the results using the command line or the browser. Step 1. Create a project To get started, create a new project. On a Mac I

How to Create a JavaScript Weighted Random Function (NodeJS, Browser)

How to Create a JavaScript Weighted Random Function (NodeJS, Browser)

This article covers how to generate weighted random boolean (true and false or 1 and 0) values using JavaScript. It also contains an example of how to test and visualize the results using the command line or the browser. In my previous article, How to Create a JavaScript Random Boolean

How to Create a JavaScript Random Boolean Function (NodeJS, Browser)

How to Create a JavaScript Random Boolean Function (NodeJS, Browser)

This article covers how to create a function to generate random boolean (true and false or 1 and 0) values using JavaScript. It also contains an example of how to test and visualize the results using the command line or the browser. The code covers how to create a function

How to Validate JSON Input with NodeJS (Schema)

How to Validate JSON Input with NodeJS (Schema)

In this article I am going to show you how to validate JSON input using NodeJS. To validate JSON input using NodeJS you can use a package or library to compare it against a schema. Step 1. Create a new NodeJS project If you need to setup your development environment,

How to Create a JavaScript Module (NodeJS, Browser)

Module support in JavaScript has gone through major changes over the years. This article covers how to create a JavaScript module that works in both NodeJS and a modern browser. If you need to work with older code, I will provide links at the end of this article for resources.

How to Test Async Requests with MochaJS

In this article I show you how to test asynchronous requests with MochaJS. To simplify the example I’m going to show you how to build a mock Web server. That way you can simulate the delay from a server, without actually having to run a server. Step 1. Clone