Where should JS scripts go in an HTML file?

Question

If you have JS code which is intended to run as part of loading/building the page, where in the HTML should this go? For instance modifying a

or add

Answer 1

For best performance place your JavaScript files at the BOTTOM of the HTML page you are serving.

To ensure that everything is set when you try to use it, execute only after the DOM is ready (there are multiple variations of this, my advice: Use a JavaScript Library).