Mastering Modern JavaScript Array Methods

Contrast imperative loops with declarative array methods like forEach, map, and filter.

Use map() to transform arrays and filter() to extract elements based on criteria.

Use reduce() to aggregate array values into a single result.

Use find(), findIndex(), and includes() to locate specific elements in an array.

Use sort() with custom comparator functions to order arrays of objects.

Distinguish between the mutating splice() and non-mutating slice() methods.

Chain multiple array methods to perform complex, multi-step data transformations.

Build a mini data filtering and sorting utility by combining array methods.