Destructuring assignment is syntax in JavaScript that allows you to unpack values from arrays or properties from objects, and save them into variables. It is a very handy feature because we can extract data directly from arrays and objects to save into variables, all on a single line of code. It is powerful because it enables us to extract multiple array elements or object properties in the same expression.

Destructuring means breaking down a complex structure into simpler parts. With the syntax of destructuring, you can extract smaller fragments from objects and arrays.

It can be used for assignments and declaration of a variable. Destructuring is an efficient way to extract multiple values from data that is stored in arrays or objects. When destructuring an array, we use their positions (or index) in an assignment.