How do JavaScript array methods work?

Can you explain how JavaScript array methods work?

Sure! JavaScript array methods are built-in functions that allow you to manipulate and interact with arrays. They can help you add, remove, or transform elements.

What are some common array methods I should know?

Some common array methods include .push(), .pop(), .map(), .filter(), and .reduce(). Each serves a different purpose for handling array data.

.map() and .filter() sound interesting. Can you give examples of how to use them?

.map() creates a new array by applying a function to each element, while .filter() creates a new array with elements that pass a test. For example, array.map(x => x * 2) doubles each element, and array.filter(x => x > 10) filters out elements less than or equal to 10.

How do I know when to use each method?

Use .map() when you want to transform data and .filter() when you want to select specific elements based on a condition.