Closure Templates are a templating system for dynamically generating HTML in both Java and JavaScript. Because the language was apparently referred to as "Soy internal to Google, and "Soy remains in some of the documentation and classes, sometimes Closure
Templates are referred to as "Soy Templates.

You can use onmessage and onerror properties if you want to manage multiple event handlers.

The focus() function can be used to focus a particular part of the HTML page in JavaScript.