I want to know the difference between the following two ways of assigning values to a array.
const arr1 = ["hello", "world"]
const arr2 = arr1
const arr3 = [...arr1]
How arr2 and arr3 are different?
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`arr3` is a shallow copy, `arr2` refers to the same array as the first – CertainPerformance Jun 10 '21 at 03:50