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var o =newF(); // statement 1 o.constructor=== F // statement 2
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const obj1 =
{
a:10,
b:15,
c:18
};
const obj2 =Object.assign({c:7, d:1}, obj1);
const obj2 =Object.assign({c:7, d:1}, obj1);
console.log(obj2.c, obj2.d);
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