Object.defineProperty - reading

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o = {};
o.test = 1;
for (let i = 0; i < 100000; i++) {
	let a = o.test + 1;
}
ready
Object.defineProperty
o = {};
Object.defineProperty(o,'test',{value: 1});
for (let i = 0; i < 100000; i++) {
	let a = o.test + 1;
}
ready

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