Can you explain array methods in JavaScript?

Can you explain array methods in JavaScript?

Sure! JavaScript arrays come with several built-in methods that allow you to manipulate and interact with the data. Some common methods include .push(), .pop(), .map(), .filter(), and .reduce(). Would you like to know about a specific method?

Yes, can you explain the .map() method?

.map() creates a new array populated with the results of calling a provided function on every element in the calling array. For example, if you have an array of numbers and you want to double each number, you can use .map() to achieve that.

Can you show me a code example?

Of course! Here's a simple example:

const numbers = [1, 2, 3, 4];
const doubled = numbers.map(num => num * 2);
console.log(doubled); // Output: [2, 4, 6, 8]

What about the .filter() method?

.filter() creates a new array with all elements that pass the test implemented by the provided function. For instance, if you want to get all even numbers from an array, you can use .filter() to do that.