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It's somehow quite reassuring that you can just type complete gibberish in JavaScript and it usually does something; for example: !~!~1234.5678["constructor
by bshimmin 12y ago
It's somehow quite reassuring that you can just type complete gibberish in JavaScript and it usually does something; for example:
!~!~1234.5678["constructor"]["constructor"](console.log("foo"))
Of course that logs "foo" - why wouldn't it?!
- nitrogen 12y agoAssuming the syntax is valid, tacking (console.log("foo")) on the end of lots of things should log foo, even if there's an error elsewhere. The "console.log('foo')" will be evaluated before trying to call the rest as a function, so even "undefined(console.log('foo'))" logs "foo" when tested in the Firefox JS console: undefined(console.log('foo')) TypeError: undefined is not a function "foo"