Codice veramente offuscato

Sono in linea di massima contrario ai codici offuscati per il gusto di farlo o per fare prima a scriverli.

Un tipico esempio è questo:

++[[]][+[]] == 1

che in JavaScript è una costruzione sintatticamente valida, qui c’è la spiegazione.

C’è di più: anche quello che segue è codice JavaScript valido che produce un risultato:

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Chi non si fida ad eseguire il codice può verificarlo qui, mentre chi vuole fare prove di offuscamento può andare qui.