product *= arr[i]
If I was a computer what would I do?
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Take the current value of
product, get the value saved in
arr[i], multiply, write into
It is just a shorthand for:
product = product * arr[i];
const arr = [2, 5];
let product = 10;
product *= arr;
console.log(product); // 20
product = product * arr;
console.log(product); // 100
When in doubt, look it up in the docs.
Thank you so much.
I’m just confused how arr[i] works
Isn’t i a different variable from arr?
or does arr[i] mean that since i = 0, i should be used as an index for arr?
Yes, arr is an array of elements. i is an index. If i is 0, then arr[i] is the first element in the array, like arr.
Thank you Kelvin.
I’ve been observing your support to people.
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