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<title>Documenttitle>
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<script>
let obj1 = { a: 1 }
let obj2 = Object.assign({}, obj1)
console.log(obj2)
obj1.a = 2
console.log(obj1)
console.log(obj2)
let obj3 = { a: { b: 1 }, c: 1 }
let obj4 = Object.assign({}, obj3)
console.log(obj4)
obj3.a.b = 2
obj3.c = 3
console.log(obj3)
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