Actually, it is. It is very easy to confuse an object literal and a block in Javascript. In fact, in the book I am writing[0], I dedicate an entire chapter to u

Actually, it is. It is very easy to confuse an object literal and a block in Javascript. In fact, in the book I am writing[0], I dedicate an entire chapter to using this ambiguity to write arsehole code. Here's another example[1] [0] https://leanpub.com/underhandedjavascript https://leanpub.com/underhandedjavascript or its alternate title: https://leanpub.com/jsinterviewquestions https://leanpub.com/jsinterviewquestions [1] Slide 21 (1-index): https://speakerdeck.com/chewxy/underhanded-javascript-how-to-be-a-complete-arsehole-with-bad-javascript https://speakerdeck.com/chewxy/underhanded-javascript-how-to... EDIT: For those of you who do not want to click through my self promotional links, try this in your browser: {}[0] == true // false {}[1] == true // true !{}[0] == true // true !{}[1] == true // true