I'm new into JavaScript and I really like jQuery and hate when it comes to writing some cumbersome code to get simple things done.

I'm currently trying to load an external JS dynamically and execute it (to communicate with Google Translate API).

The sample code creates a `script` tag, sets its `src` and appends it to document's `head` to execute it:

```
var newScript = document.createElement('script');
newScript.type = 'text/javascript';
var sourceText = escape(document.getElementById("sourceText").innerHTML);
var source = 'https://www.googleapis.com/language/translate/v2?key=INSERT-YOUR-KEY&source=en&target=de&callback=translateText&q=' + sourceText;
newScript.src = source;

// When we add this script to the head, the request is sent off.
document.getElementsByTagName('head')[0].appendChild(newScript);

```

I wonder if there's any one-liner in jQuery for this.