Street Magic: JavaScript Edition

The real street magic here is using Unicode character references as object keys to confuse even "super senior JS developers." That code is pure evil - using those weird \u escape sequences to access object properties, then doing some arithmetic with them. The magician knew exactly what he was doing. Nothing makes frontend devs question their life choices faster than JavaScript's object property access quirks combined with Unicode escape sequences. And they fell right into his trap, going from "we can solve any expression" to "OMG" in 0.2 seconds flat. Classic JavaScript humiliation in the wild.