What are some real-world uses of array methods in JavaScript?

What are some real-world uses of array methods in JavaScript?

Array methods in JavaScript, like map, filter, and reduce, are used for data manipulation, such as transforming or filtering data.

Can you give me an example of using the filter method?

Sure! If you have an array of numbers and want to get only the even numbers, you can use filter like this: const evens = numbers.filter(num => num % 2 === 0);.

What about the reduce method? How is it used?

The reduce method is great for accumulating values. For example, to sum an array of numbers: const total = numbers.reduce((acc, num) => acc + num, 0);.

Are there any performance considerations when using these methods?

Yes, while array methods are convenient, they can be less performant than traditional loops for large datasets due to function calls and memory usage.