JS Bin

 
<html><head>    <script type="text/javascript">      var instance = 4;
​
    function newTextBox(element) {                        instance++;         var newInput = document.createElement("input");         newInput.id = "text" + instance;         newInput.name = "text" + instance;         newInput.type = "text"; ​        var div = document.createElement('div');         div.appendChild(newInput);         document.body.insertBefore(div, element);     }     </script></head>​​<body>        <input id="text2" type="text" name="text1"/> <br>        <input type="button" id="btnAdd" value="New text box" onclick="newTextBox(this);" /></body>

if (document.getElementById('hello')) {

Console

:help
:reset - destroy state and start afresh :history - list current session history :load <url> - to inject new DOM :load <script_url> - to inject external library load also supports following shortcuts:
jquery, underscore, prototype, mootools, dojo, rightjs, coffeescript, yui.
eg. :load jquery :clear - to clear contents of the console :about jsconsole

Output Auto-run JS

Shortcut	Action
ctrl + [num]	Toggle nth panel
Require alt key, leaving cmd+1, 2 etc for tab switching.
ctrl + 0	Close focused panel
ctrl + enter	Re-render output. If console visible: run JS in console
Ctrl + l	Clear the console
ctrl + /	Toggle comment on selected lines
ctrl + ]	Indents selected lines
ctrl + [	Unindents selected lines
tab	Code complete & Emmet expand
ctrl + shift + L	Beautify code in active panel
ctrl + s	Save & lock current Bin from further changes
ctrl + shift + s	Open the share options
ctrl + y	Archive Bin
Complete list of JS Bin shortcuts

URL	Action
/	Show the full rendered output. This content will update in real time as it's updated from the /edit url.
/edit	Edit the current bin
/watch	Follow a Code Casting session
/embed	Create an embeddable version of the bin
/latest	Load the very latest bin (/latest goes in place of the revision)
/[username]/last	View the last edited bin for this user
/[username]/last/edit	Edit the last edited bin for this user
/[username]/last/watch	Follow the Code Casting session for the latest bin for this user
/quiet	Remove analytics and edit button from rendered output
.js	Load only the JavaScript for a bin
.css	Load only the CSS for a bin
Except for username prefixed urls, the url may start with http://jsbin.com/abc and the url fragments can be added to the url to view it differently.

JS Bin features

Pro features

Blog

Help

Donate to JS Bin ❤

JS Bin features

Pro features

Blog

Help

Donate to JS Bin ❤

Keyboard Shortcuts

JS Bin URLs