FingerprintJS, fraud detection + user identification JS

FingerprintJS Pro is a combination of a JavaScript agent that runs in the browser and a server-side storage and API system that securely identifies visitors and stores all the information you need to detect fraud. Business scenarios where FingerprintJS Pro can help Catch bots trying to automatically input many usernames and passwords into your login …

JavaScript Event Capturing and Bubbling

In JavaScript, The event handling process: When an event happens – the most nested element where it happens gets labeled as the “target element” (event.target). Then the event first moves from the document root down to the event.target, calling handlers assigned with addEventListener(…., true) on the way (true is a shorthand for {capture: true}). Then the event moves from event.target up to …

What is AMD, CommonJS, and UMD?

Over the years there’s been a steadily increasing ecosystem of JavaScript components to choose from. The sheer amount of choices is fantastic, but this also infamously presents a difficulty when components are mixed-and-matched. And it doesn’t take too long for budding developers to find out that not all components are built to play nicely together. …