A testing environment for JavaScript other than browser?
<p>When I want to test something in JavaScript, I open up a new browser window (mostly Firefox) and start writing code in the provided console (mostly Firebug). </p>

<p>However, this tends to be really tedious and slow. Is there an environment, like an IDE with self-execution capability for example, in which we can test JavaScript? </p>

<p>Guide: I'm looking for something like jsfiddle, but not in the browser, and not online. I'd like to have an execution environment which is both off-line, and is not a browser.</p>

<p>All I'm asking is to have something like the Firebug Console as a separate applications (preferably Windows application) which can be opened by double-clicking, and in which, you can write JavaScript code and hit execute. That's all. </p>

<p>In simpler terms, all I want is Firebug's console, without Firefox. Do we have such a thing on the market?</p>
