JavaScript Live Executer.

Playground → Live JavaScript

Source Code: // `msg` is of type Array var msg = ['Hello, <b>World</b>!', 'Here you cat test your JS code while writing, real time!'.sub()]; // Let's display contents of `msg` using `document.writeln`: for(var i=0; i < msg.length; i++) { document.writeln(msg[i] + '<br /><br /><hr />'); } // `alert()` messages are caught and displayed in the box bellow alert('This is an "alert box"!'); // There is a `log()` function that just displays the given value with(navigator) { log(appVersion); log(userAgent); }
No Logs No Alerts

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Canvas:

About Live JavaScript Executer:

I never had the intention to write a replacement for repl.it or jsFiddle or jsBin or W3S's TryIt.
This JS Live Executer is here for historical reasons.
It was written by the time I was coding for IE, before Google Chrome had came to being.
It was fun and helped me learn and test a lot of things in JS.
If someone finds it useful, I would be very happy :-)
Alternatively simply press Ctrl+Shift+J in Google Chrome to open the Console.