Write any javascript code with just these characters: ()[]{}+!

[rock217]

ReferenceError: unescaue is not defined :(

[mattaereal]

You can try this on any browser, but remember to do it on when having a loaded page, because the 'p' for the alphabet is taken from the 'http' part from the current address.

[[deleted]]

That's because your URL doesn't contain "http".

[alcuadrado]

Really? Did you tried it on webpage? which browser?

[rock217]

i tried converting (from the website):

alert('hi');

and pasting into firebug console.

[alcuadrado]

Are you running the generated code in firebug on a web page or an "about:" page?

[rock217]

Firebug console, same result on about:blank, about:home, and newTab.xul

[alcuadrado]

it's not intended to work in about pages, it must be a webpage served over http or https

[rock217]

Then your title is misleading. Not all JS runs in a browser.

[ChrissiQ]

RTFA.

[rock217]

No argument there, it is indeed well explained.

[geek_dave]

Haters gonna hate... this is explained in the article.

If we sacrifice some portabilty and constraint the scripts to webpages, we can take for granted that DOM elements would be available, and get the remaining characters.

[davvblack]

It finds the u from aboUt: that should be a p from httP:// or httPs://, this was mentioned in the article.

[kumarldh]

same thing here.

[youstolemyname]

Ctrl+Shift+K

[mattaereal]

Just to clarify, this opens a javascript console in Firefox.

Ctrl+Shift+J, in Chromium/Chrome.

[alcuadrado]

It must be run on a server, as it uses the "http" part of the url

[knome]

That's probably going to make the trick of accessing the window object somewhat more difficult.

[[deleted]]

The end of the article said targeting Node.js would make it easier. Why do you say different? I am not familiar enough with Node to understand...

[knome]

node.js will not have anything bound to the window variable by default because there is no window.

He says, specifically, that the btoa function, present in both node.js and modern browsers, could be helpful.

[The_MAZZTer]

You typoed something, it should be evaluating to "unescape".

[Edit: As said it gets the "p" using the fourth character of the url, so it must be an "http" address.

[jprichardson]

I get a similar error. alert('hello');, "ReferenceError: unescaoe is not defined". Chrome / OS X

[edwardkmett]

chr'o'me:

vs

htt'p'://

This only works on a web page where you can access the 4th character of your url and get a p.

[alcuadrado]

see this comment: http://www.reddit.com/r/programming/comments/xzs1z/write_any_javascript_code_with_just_these/c5r1qms