28 JavaScript One-Liners every Senior Developer Needs to Know

1. Swapping Values Without a Temporary Variable

let a = 1, b = 2;

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

// Output: a = 2, b = 1

This one-liner uses array destructuring to swap the values of a and b without needing a temporary variable. It's a neat trick that makes your code cleaner and more concise. The [a, b] = [b, a]…