How do I use arrays in JavaScript?

How do I use arrays in JavaScript?

In JavaScript, arrays are used to store multiple values in a single variable. You can create an array using square brackets, like this: let fruits = ['apple', 'banana', 'cherry'];.

What methods can I use to manipulate arrays?

You can use various methods like push() to add items, pop() to remove the last item, shift() to remove the first item, and unshift() to add items to the beginning.

Can you explain how to loop through an array?

Certainly! You can use a for loop, forEach(), or even map() to iterate through an array. For example: fruits.forEach(fruit => console.log(fruit));.

What about multidimensional arrays?

Multidimensional arrays are arrays of arrays. You can create them like this: let matrix = [[1, 2], [3, 4]]; and access elements using two indices, like matrix[0][1].