JSFuck

()+
[]!

JSFuck is an esoteric and educational programming style based on the atomic parts of JavaScript. It uses only six different characters to write and execute code.

It does not depend on a browser, so you can even run it on Node.js.

Use the form below to convert your own script. Uncheck "eval source" to get back a plain string.

Links

• CTF CTF论坛, CTF平台

Basics

• false => ![]
• true => !![]
• undefined => [][[]]
• NaN => +[![]]
• 0 => +[]
• 1 => +!+[]
• 2 => !+[]+!+[]
• 10 => [+!+[]]+[+[]]
• Array => []
• Number => +[]
• String => []+[]
• Boolean => ![]
• Function => []["filter"]
• eval => []["filter"]["constructor"]( CODE )()
• window => []["filter"]["constructor"]("return this")()