Make your JS invisible
Hide your code by invisible characters
Guess what the output is?
Function('βββββββββββββββββββο»Ώβββββββββββββββββββββββββββββββο»Ώβββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββο»Ώβββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ'.replace(/......../g, function($) { return String.fromCharCode(parseInt($.replace(/./g, function($) { return { 'β': '00', '': '01', 'β': '10', '': '11' }[$] }), 2)) }))()Why?
vim temp
Display invisible characters through vim.

