Learning a new framework or development environment is made even more difficult when you don't know the programming language. Fortunately, we're here to help... (more…)

It might be the very first thing a lot of people learn in JavaScript: alert("Hello, World"); One day at CodePen, we woke up to a ton of customer support... (more…)

Recently, I worked on a task of adding a time zone feature to the JavaScript calendar library managed by my team. I pretty well knew that… (more…)

◾ `var` is now the weakest signal available when you define a variable in JavaScript. The variable may or may not be reassigned, and the variable may or may not be used for an entire function. ◾ I… (more…)

It’s very common for JavaScript developers to claim that it’s impossible to create truly encapsulated properties and methods on an object… (more…)