There are many ways to manipulate arrays.

One common task is filtering arrays to only contain certain values.

For this we can use the .filter() method.

Here is an example:

var pets = ['cat', 'dog', 'elephant'];

var filtered = pets.filter(function (pet) {
  return (pet !== 'elephant');
});

The filtered variable will now only contain cat and dog.

Create a file named array-filtering.js.

In that file, define a variable named numbers that references this array:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10];

Like above, define a variable named filtered that references the result of numbers.filter().

The function that you pass to the .filter() method will look something like this:

function evenNumbers (number) {
  return number % 2 === 0;
}

Use console.log() to print the filtered array to the terminal.

Check to see if your program is correct by running this command:

javascripting verify array-filtering.js