Best Place To Refer Knockout.js File | Knockoutjs

In general, it is better to reference the scripts at the bottom of the page. Mainly, it allows the page to appear to render faster to the end user because the entire visual markup is processed before the script references are, and thus will be displayed on the web browser's screen while the referenced JavaScript files are downloading and being processed into the browser's memory.

Knockout is a library that works with the browser's Document Object Model (DOM), and in order to do so, the browser needs to have created and rendered the content portions of the DOM before Knockout executes. So, simply as a best practice we place our JavaScript files at the bottom of the page in order to give our users the best experience possible.