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

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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]