Javascript offers at least 4 ways to fill an array with different values using only native language methods. These methods allow you to create an arrangement of a predefined size and content. It's possible to use `Array.fill` to create an Array with a pre-defined size and then use `Array.map` to populate the items with a default value, like integer or string. It's also possible to populate the array with an object, but we will require to use another function because `Array.fill` just copy a reference to the original object without creating multiple unique objects. To solve this we can use `Array.map`. Other way to solve the same problem is by using a for loop, but this is a mutable method. Also, we can use `Array.from` or the array spread syntax in combination with the `Array.map` function.