# Filling an array in JavaScript

You can fill arrays with data in a loop. To do this, use the `push` method:

`let arr = []; for (let i = 1; i <= 5; i++) { arr.push(i); } console.log(arr); // shows [1, 2, 3, 4, 5]`

Using a loop and the `push` method, fill an array with numbers from `1` to `10`.

Using a loop and the `push` method, fill an array with `10` letters `'x'`.

Given an array of numbers. Loop through it and write only positive numbers into the new array.

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