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Can (a==1 && a==2 && a==3) ever evaluate to true? #26

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likui628 opened this issue Jul 1, 2022 · 1 comment
Open

Can (a==1 && a==2 && a==3) ever evaluate to true? #26

likui628 opened this issue Jul 1, 2022 · 1 comment
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JS javascript

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@likui628
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likui628 commented Jul 1, 2022

Is it ever possible that (a== 1 && a ==2 && a==3) could evaluate to true in JavaScript?
@luckept
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luckept commented Jul 1, 2022

of course, my old baby!

const a = { val: 1 };
a[Symbol.toPrimitive] = () => a.val++;
console.log(a == 1 && a == 2 && a == 3);

@Hongbusi Hongbusi added the JS javascript label Jul 5, 2022
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@Hongbusi @luckept @likui628