Destructuring Assignment with the Rest Operator to Reassign Array Elements

Destructuring Assignment with the Rest Operator to Reassign Array Elements
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#1

I’ve completed the challenge. I do have a doubt, though.
How come in the code below are we able to reassign the const arr variable?

Your code so far


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

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Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/es6/use-destructuring-assignment-with-the-rest-operator-to-reassign-array-elements


#2

global variables vs function variables. They have different scope.