Why {} !== {} in Javascript

Question

I was going through Map Documentation on MDN. In Examples, under Using Map Object, Object Literal - {} is used as key to store value. But, the value in Map can't be retrieved using Object Literal.

I verified this in Browser Console and found that Object Literal is not equal to itself. Also, the Function Expression - function() {} is not equal to itself.

I couldn't find the reason behind this. If required, I can ask a different question for Function Expression.

Because the two objects aren't the same reference/don't refer to the same object? — Andrew Li, Feb 24 '17 at 03:52
http://stackoverflow.com/questions/11704971/why-are-two-identical-objects-not-equal-to-each-other — hackerrdave, Feb 24 '17 at 03:53
Thanks @Andrew. I was reading Object Documentation on MDN. But was not sure whether it creates a new object. — Developer, Feb 24 '17 at 04:20

score 5 · Accepted Answer · answered Feb 24 '17 at 03:52

5

Each time you do {}, it creates a new empty object, so when you do {} == {}, you're comparing two different objects. This comparison is done by reference, so it returns false.

answered Feb 24 '17 at 03:52

Joseph Sible-Reinstate Monica

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Why {} !== {} in Javascript

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