28 JavaScript One-Liners every Senior Developer Needs to Know

1. Swapping Values Without a Temporary Variable

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]

syntax swaps their values by destructuring the array on the right-hand side and assigning it to the left-hand side.

testing...