In the JavaScript, we attach a listener to the inputBox field programmatically using the addEventListener, whereas before we did it declaratively in the HTML. By listening to the input event, we ...

Essentially, we get a more granular HTML syntax, which can just load segments instead of whole pages, and can submit Ajax requests. This is an interesting example of the DRY principle in action.

A developer can perform an Ajax-based file upload to a server with JavaScript in five steps: An HTML5 input form element must be included in the webpage that renders in the client’s browser; ... All ...