const droids = ['R2-D2', 'C-3PO', 'K-2SO']
// put new value in first element, define newDroids with a spread of droids, creating a new reference
const newDroids = ['BB-8', ...droids]
// the original variable wasn't updated
console.log(droids)
// ['R2-D2', 'C-3PO', 'K-2SO']
// only the new one was updated
console.log(newDroids)
// ['BB-8', 'R2-D2', 'C-3PO', 'K-2SO']
Created
March 20, 2021 13:12
-
-
Save darleykrefta/7a6ea279ff062345c1dc22a4d0e36636 to your computer and use it in GitHub Desktop.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment