openjsan

A province opening a regulated online casino market is, among other things, a large coordinated web launch.

A large share of everyday JavaScript is moving data through arrays: picking some items, reshaping them, totting up a number.

Frameworks are useful, but a lot of interface work needs nothing more than the browser.

Automated tests exist to answer one question quickly: did this change break anything that used to work?

Most debugging is done with scattered console.log calls, then deleting them afterward.

JavaScript has had object-oriented features since the start, but they do not work the way they do in Java or C++.

For years, almost every JavaScript project started by adding a general-purpose utility library.

JavaScript runs your code on a single thread.

For most of its first decade, JavaScript had no built-in way to split a program across files.

The ability to request data in the background, without reloading the whole page, is what made interactive web applications possible.