In javascript, [] === [] and [] == [] both returns false

Question

why is that? I assumed it's some implicit type conversion at first, but [] == [] is also false.

Hunan Rostomyan · Accepted Answer · 2015-12-05T08:49:03.017

4

Arrays in javascript are Objects. Objects are compared by identity. So no two objects created by different literals (or by other means) are going to be equal (either strictly (===) or loosely (==)).

edited Dec 05 '15 at 08:49

answered Dec 05 '15 at 08:43

Hunan Rostomyan

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in javascript: `[] === []` equals new `Array() === new Array()` which means two instances of array. – Sagi Dec 05 '15 at 08:49
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@T.J.Crowder I've always felt a bit uneasy about those terms. Thanks for the heads up. – Hunan Rostomyan Dec 05 '15 at 08:50

In javascript, [] === [] and [] == [] both returns false

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