Are +0 and -0 the same?

Question

Reading through the ECMAScript 5.1 specification, +0 and -0 are distinguished.

Why then does +0 === -0 evaluate to true<

Answer 1

I'd blame it on the Strict Equality Comparison method ( '===' ). Look at section 4d

see 7.2.13 Strict Equality Comparison on the specification