1] How does JavaScript work? In most instances, JavaScript is known as a client-side script. That means it relies heavily on the client device, such as a tablet or smartphone, to run properly.

Asynchronous programming in JavaScript leverages features like callbacks, promises and async/await to sidestep this issue by allowing other code to run in the meantime.

Simpson says this works in two ways: People familiar with other languages can quickly grasp JavaScript’s concepts, and for those new to programming, it serves as a key to help understand other ...

JavaScript can be a boon if used with care—or a bane if used recklessly. Here are the 10 JavaScript concepts you’ll need to write scalable code in Node.js.

This works because if Bun finds a default export object with a fetch method, it assumes it’s a server. It wraps this in the Bun.serve API. You can see a simple use of this API in Listing 4.