JavaScript Array Methods Explained

JavaScript arrays have powerful built-in methods that let you transform, filter, and combine data without writing loops. Key methods: 1. map(): creates a new array by transforming each element 2. filter(): creates a new array with only elements that pass a test 3. reduce(): combines all elements into a single value 4. find(): returns the first element that passes a test 5. forEach(): executes a function for each element These methods are the foundation of functional programming in JavaScript and are used extensively in React and other frameworks.