object.create(null) vs {}

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Testing in
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Object.create(null)
const a = Object.create(null);
ready
{}
const a = {};
ready
access Object.create(null)
const a = Object.create(null);

a.foo = "bar";

const b = a.foo;
ready
access {}
const a = {};

a.foo = "bar";

const b = a.foo;
ready

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