freeCodeCamp/guide/english/certifications/javascript-algorithms-and-data-structures/es6/use-destructuring-assignment-to-assign-variables-from-arrays/index.md

title
Use Destructuring Assignment to Assign Variables from Arrays

Use Destructuring Assignment to Assign Variables from Arrays

We have to take some precaution in this case.

1. No need of const [b,a] as it will keep the effect of assignment local.

2. const [b,a] = [a,b] will result in the value of a,b as undefined(simple assignment rule left to right).

Hence the solution to this problem is [b,a] = [a,b]