It's just creating two JSON strings and compares them, all of JSONs limitations (not only undefined or null but also Infinite, NaN, functions, symbols and such) apply. Shouldn't have to mention it as should be fairly obvious.
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JSON.stringify([undefined]) === JSON.stringify([null])It's just creating two JSON strings and compares them, all of JSONs limitations (not only
undefinedornullbut alsoInfinite,NaN, functions, symbols and such) apply. Shouldn't have to mention it as should be fairly obvious.