console.log(typeof null); # object console.log(Object.prototype.toString.call(null)); # [object Null]
This means that null is expected to be an object. But, console.log(Object.keys(null)); # TypeError: Object.keys called on non-object The error message says that null is a non-object. It contradicts the result of typeof and toString. *Question 1:* Why does it behave so? Is this something which has to be fixed? Also, null is not a keyword <http://es5.github.io/#x7.6.1.1>, but when I do var null = 1; # SyntaxError: Unexpected token null It fails with the Syntax Error, since it is a Reserved Word<http://es5.github.io/#x7.6.1> . *Question 2:* What is the purpose of keeping null and boolean literals as "Reserved words" and not just keywords? Note: I tried these samples in node v0.11.13-pre - Thanks and Regards, Sakthipriyan Vairamani
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