Use Destructuring Assignment with the Rest Parameter to Reassign Array Elements2547

Hello, I’m using destructuring with the rest parameter in order to return an array excluding the first two elements of the original array. The error I am getting is that variable (a) is undefined. Can someone lead me on the proper path as to how to define variable (a) and (b) because in the course reading I see they structured the code the same way I am writing it so I figured to just try to mirror the same structure if that makes sense.

//My Code

const source = [1,2,3,4,5,6,7,8,9,10];

function removeFirstTwo(list) {
const arr = [a, b, ...list]; 
return arr;                                                                 //<---- Getting error because (a) is undefined
const arr = removeFirstTwo(source);

//course example

const [a, b, ...arr] = [1, 2, 3, 4, 5, 7];
console.log(a, b);
//The console would display the values 1, 2 and [3, 4, 5, 7].
//Since my first attempt said that Variable (a) was undefined I tried this below but it //does not work either.

const source = [1,2,3,4,5,6,7,8,9,10];

function removeFirstTwo(list) {
  let a = source[0];
  let b = source[1];
let arr = [a, b, ...list]; 
return arr;
const arr = removeFirstTwo(source);

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

Link to the challenge:


is not the same as this:

const [a, b, ...arr] = [1, 2, 3, 4, 5, 7];

When you use destructuring assignment you write it with the = at the end. const [foo] = anArrayOfThings;

1 Like

ahh i see, thanks for the help I appreciate it!

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