If you want to get fancy and perform an asynchronous file upload with Java, add Ajax functionality by editing the HTML file. If you replace the markup in HTML file with what’s below, the ...

Do you need to perform an Ajax file upload with pure JavaScript? This example lays out the steps to accomplish an Ajax file upload without the need for a JavaScript library like jQuery or Dojo.

The wasm.html is the one we are interested in. Most of the file is basic HTML, but there’s some interesting JavaScript to consider, shown in Listing 1. Listing 1. The web application for ...