Array destructuring in JavaScript is a concise way to extract values from arrays and assign them to variables. It simplifies code and improves readability, especially when dealing with arrays with multiple elements or nested arrays.

Without destructuring, each value must be accessed individually using indexes. With destructuring, values are unpacked directly into variables.

You can assign default values in case a value is undefined in the array.

Destructuring works on nested arrays too by using nested patterns.

The rest operator (...) can be used to collect remaining values into a single array.

You can directly destructure an array passed to a function inside its parameter list.

Destructuring is helpful when functions return arrays. You can extract each item directly.