Here's a code-first intro to the HTML-based JavaScript templating language. JSX is a way to write HTML inside of JavaScript, but it feels more like a way to write JavaScript inside of HTML.

And with various JavaScript frameworks being used more ... the page to the processor for rendering. The static HTML is indexed while links found are passed back to the crawler for discovery.

Site owners also shouldn’t simulate links by using other HTML elements and using a click handler in JavaScript, for example. This breaks the built-in accessibility features and isn’t a good idea.