Why does JavaScript sometimes work and sometimes not? Understanding the basics of loading order

I created a process to open a menu when a button is pressed, but nothing happens.Even with the same JavaScript, it suddenly started working when I changed where the file was loaded.In web development, ...
I Programmer

JavaScript Async - Basic Async & Await

The new async and await keywords in JavaScript are probably the best and almost complete solution to the asynchronous programming problem. In JavaScript, however, they are built on top of the Promise ...
InfoWorld

JavaScript callbacks, promises, and async/await explained

Asynchronous code (async code) says: go do something while I do other things, then let me know what happened when the results are ready. Also known as concurrency, async is important in a variety of ...
I Programmer

JavaScript Async - Basic Async & Await

The new async and await keywords in JavaScript are probably the best and almost complete solution to the asynchronous programming problem. In JavaScript, however, they are built on top of the Promise ...