WTFJs

JavaScript is a language we love despite it giving us so much to hate. This is a collection of those very special irregularities, inconstancies and just plain painfully unintuitive moments for the language of the web.

1. alert(111111111111111111111);

2. [] == ![] // true

3. 0.1 + 0.2 === 0.3 // false

4. Nan != NaN // true

http://wtfjs.com