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How can I use destructuring to swap values of two variables in JavaScript?

Asked on Oct 23, 2025

Answer

Destructuring in JavaScript provides a concise way to swap the values of two variables without needing a temporary variable. Here's how you can do it:

<!-- BEGIN COPY / PASTE -->
        let a = 1;
        let b = 2;

        [a, b] = [b, a];

        console.log(a); // 2
        console.log(b); // 1
        <!-- END COPY / PASTE -->

Additional Comment:

The array destructuring syntax "[a, b] = [b, a]" allows you to swap the values of "a" and "b" directly.
This method is concise and eliminates the need for a temporary variable.
The console.log statements confirm that the values have been swapped.

✅ Answered with JavaScript best practices.

Ask any question about JavaScript here... and get an instant response.

How can I use destructuring to swap values of two variables in JavaScript?

Asked on Oct 23, 2025

Answer

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