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@addyosmani
Forked from 140bytes/LICENSE.txt
Last active June 10, 2022 14:27
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Offline Text Editor in < 140 bytes (115 bytes). Powered by localStorage & contentEditable
with({
l: localStorage // Alias for localStorage, where we'll store text content
}) with(document.body) // With the document body..
contentEditable = !0, // Turn on contentEditable
innerHTML = [l.c], // Set innerHTML of our element to the value stored in localStorage
oninput = function () { // On input..
l.c = innerHTML // store our content in localStorage
}
!function(l){with(document.body)contentEditable=!0,innerHTML=[l.c],oninput=function(){l.c=innerHTML}}(localStorage)

Edit: Thanks to help from @mathiasbynens, @subzey and @beaufortfrancois we are now down to 115 bytes from my original 136.

I use this as a JavaScript snippet or bookmarklet in Chrome to turn the current blank tab into an offline text-editor which stores what I write in localStorage. The < 140 character version can be run via console.

The original version that you can add as a bookmarklet:

(function(d){l=localStorage,k='c',q=d.body;q.contentEditable=true;q.innerHTML=l[k]||'';q.oninput=function(){l[k]=q.innerHTML;}})(document);

A demo version of this is available on JSBin.

The optimized version (115 bytes):

!function(l){with(document.body)contentEditable=!0,innerHTML=[l.c],oninput=function(){l.c=innerHTML}}(localStorage)

Pretty version

Prettier version of the implementation using document.write (hah) to write over any existing tab content, gives you some styling too:

javascript:(function(d){d.write('<body contenteditable style="font: 2rem/1.5 monospace;max-width:60rem;margin:0 auto;padding:4rem;">');var k = 'c'; var q = d.querySelector('body');q.innerHTML=localStorage[k];q.oninput=function(){localStorage[k]=q.innerHTML;}})(document);

Preview:

DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
Copyright (C) 2014 ADDY OSMANI <addyosmani.com>
Everyone is permitted to copy and distribute verbatim or modified
copies of this license document, and changing it is allowed as long
as the name is changed.
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. You just DO WHAT THE FUCK YOU WANT TO.
{
"name": "offlineTextEditor",
"description": "ContentEditable-powered Offline text editor",
"keywords": [
"text",
"edit",
"editor",
"localStorage",
"offline"
]
}
<!DOCTYPE html>
<title>Offline Text Editor</title>
<style>
body { font: 2rem/1.5 monospace;max-width:60rem;margin:0 auto;padding:4rem;}
</style>
<body>
<script>
!function(l){with(document.body)contentEditable=!0,innerHTML=[l.c],oninput=function(){l.c=innerHTML}}(localStorage);
</script>
</body>
@liorama
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liorama commented May 26, 2014

@tsaniel My personal preference is formatting and syntax highlighting but those might be a problem with the 140bytes restriction 😄

@xem
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xem commented May 27, 2014

Maybe 140bytes really needs an update. For instance, arrow function.
My #1 request would be to allow 140 characters instead of 140 bytes, to allow things like that:
http://xem.github.io/miniCodeEditor/tweet.html
But then the name of the site would have to change...

@tsaniel
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tsaniel commented May 28, 2014

@xem I'm afraid if 140 characters are allowed then every gist will use the same encoding trick?

@xem
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xem commented May 28, 2014

yeah... but it's not only for the encoding trick.
Twitter counts Unicode characters, 140byt.es counts bytes...
So a 140-char script containing some multibyte characters would fit in twitter but not here.

@xcislav
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xcislav commented Jul 16, 2014

89b

I don't understand:
square brackets [ ]
localStorage (the cookies of a browser)
innerHTML in quotes
.c

My understanding is:
and equals sign (=)
onload event
contentEditable
.innerHTML as a property

(for example, I understand the .innerHTML property of

when using it with contentEditable attribute - div then becomes like <input/textarea>)

Summary: Could Someone give a brief description of the editor's work?

@orschiro
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Can someone please explain to me how to use this code as a bookmarklet?

Thanks!

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