ES6: Use Destructuring Assignment with the Rest Parameter to Reassign Array Elements

JavaScript
1

Tell us what’s happening:
Hi all,

Could someone explain to me how this works? I’m sure I’m just having a lapse in concentration but I don’t understand how const [a, b, …arr] = list is receiving the array data from source.

This may just be me thinking how how things are done in different languages or vanilla JS but I would have assumed:
const [a, b, …arr] = source

Thanks in advanced

Your code so far


const source = [1,2,3,4,5,6,7,8,9,10];
function removeFirstTwo(list) {
"use strict";
// Only change code below this line
const [a, b, ...arr] = list; // Change this line
// Only change code above this line
return arr;
}
const arr = removeFirstTwo(source);

console.log(arr);

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Challenge: Use Destructuring Assignment with the Rest Parameter to Reassign Array Elements

Link to the challenge:

2

remember that to make reusable functions you need to use the function parameter, not a global variable

1 Like
3

Ok I see where it’s getting the data from