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, ...
InfoWorld

Intro to Astro: Clever lazy loading for JavaScript

Essentially a build system, Astro takes a promising new approach to front-end JavaScript. And it works with React, Svelte, Vue, and other popular frameworks. Astro is a new approach to the current ...
Search Engine Roundtable

Loading Content With JavaScript Does Not Make It Harder For Google Search

Google has removed a whole section from its JavaScript SEO documentation because it was outdated and Google says loading content with JavaScript does not make it hard for Google Search. Google wrote ...