“Destructuring” does not mean “destructive”
It’s called “destructuring assignment”, because it “destructurizes” by copying items into variables. But the array itself is not modified.
It’s just a shorter way to write:
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// let [firstName, surname] = arr; let firstName = arr[0]; let surname = arr[1]; |
Thus, we can do a shorthand like so?
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// we have an array with the name and surname let arr = ["Ilya", "Kantor"] // destructuring assignment let [firstName, surname] = arr; alert(firstName); // Ilya alert(surname); // Kantor |
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// first and second elements are not needed let [, , title, want] = ["Julius", "Caesar", "Consul", "of the Roman Republic"]; console.log(title); // Consul console.log(want); |