Welcome to the forum.

You will need to give us more context of what you are trying to achieve. Also, you will need to provide us with the code you have tried so far.

Firstly, welcome to the forums.

While we are primarily here to help people with their **Free Code Camp** progress, we are open to people on other paths, too. *Some* of what you are asking is pretty trivial in the Free Code Camp context, so you might find that if you’re not getting the instruction and material you need in your current studies, the FCC curriculum will really help you get started. At a modest guess I’d say investing a 4-5 hours working through the curriculum here will really pay off. You can find the curriculum at https://www.freecodecamp.org/learn.

With your current questions, we don’t have enough context to know **what you already know or don’t know**, so it is impossible to guide you without just telling you the answer (**which we won’t do**).

It is pretty typical on here for people to share a codepen / repl.it / jsfiddle example of what they have tried so that anyone helping has more of an idea of what help is actually helpful.

Please provide some example of what you’ve tried and I’m sure you’ll get more help.

Happy coding

im sorry i edited again so how to sort all even numbers in ascending order and then sort all odd numbers in descending order in javascript A = [30, 19, 9, 15, 55, 24, 3, 78, 46, 41].

you need to try to do something yourself, people are not going to give you the answer

You can have a look at the sort method and the remainder oprator. Here is the fCC challenge finding a remainder in javascript, and here is an example usage.

Also, where does the sorted numbers go?

Are we to assume you are supposed to assign the sorted versions of the original array to new variables?

A =[24, 30, 46, 78, 55, 41, 19, 15, 9, 3].

this must be the result

Have you written out an algorithm yet? If not, you need to start figuring out the steps (not code) if you were tasked to do this manually. Once you figure out the process, then you would try to convert your steps to code.

How is it possible to learn? can you help me please ? its my home task

Think about the steps you would need to take to take the following array:

```
[3, 46, 9, 19, 24, 78, 41, 15, 55, 30]
```

and turn it into:

```
[24, 30, 46, 78, 55, 41, 19, 15, 9, 3]
```

Just think about it and try to write out the steps. If you get stuck, post the steps you have written out and we will try to guide you to an algorithm.