What is the forEach method in JavaScript?

What is the forEach method in JavaScript?

The forEach method is used to execute a provided function once for each array element.

Can you give me an example of how to use forEach?

Sure! Here's a simple example:

const numbers = [1, 2, 3, 4];
numbers.forEach(num => {
  console.log(num);
});

This will log each number in the array.

What are the differences between forEach and a regular for loop?

The forEach method is more concise and easier to read, but it cannot be broken out of like a traditional for loop.

Are there any performance considerations when using forEach?

Yes, forEach can be slower than a traditional for loop for large arrays, as it involves function calls for each element.