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I know there was website I once saw that permitted me to interactively play with Javascript and JQuery. It had an IDE, a render pane and a result debugger thing too. Does anyone know what it was called or anything like this?

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closed as too localized by phwd Jul 16 '11 at 22:26

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

You can also just start playing in the browser window. Try pasting in javascript:alert('hello'); – theycallmemorty Jul 20 '10 at 19:24
I'm not sure but, doesn't this sound like a question for stackoverflow community? – IsmailS Jul 26 '10 at 9:57
Relevant discussion on the meta site: meta.webapps.stackexchange.com/questions/510/… – Rebecca Chernoff Jul 26 '10 at 13:10
Why is this closed or marked as too localized? It has 20 upvotes. The chosen answer 25 upvotes. It's one of the top 500 most upvoted questions on this site. It was agreed upon on meta.webapps as being on topic. – Evan Carroll Dec 14 '15 at 21:53
It may have been on topic in the past, but now questions asking to "recommend or find" a web app are off-topic. If this gets re-opened it will surely be re-closed with that reason. – Al E. Dec 15 '15 at 0:14
up vote 25 down vote accepted

Was it jsFiddle?

alt text

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That was it! thanks. – Evan Carroll Jul 21 '10 at 16:56

Another option besides jsFiddle is jsbin.com. You can even save your experiments under a public URL, so that others can view and edit your creation.

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jsFiddle has a pastebin/share function itself. – Rebecca Chernoff Jul 20 '10 at 19:25

If you're using Firefox, install FireBug, and then FireQuery.

Then on any webpage, open FireBug (bottom right), and enable the console (should be a little down arrow by "Console"). From here you'll see a button "jQuerify". Clicking it will inject jQuery into the current page.

You can type whatever jQuery-dependant JavaScript you want into the command-line.

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If you are using FireFox you can use the FireBug Add-On.
If you are using IE, you can use the Developer toolbar (For IE7 or earlier you have to download and install it separately)

Press f12 on either platform to activate it. There is a Javascript console in lets you interactively enter java script commands.

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It's not a web app, but take a look at jQueryPad. It's a downloadable application you can use to quickly build and test your script and markup.

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