atomsCategoryList List available categories

## Syntax

                atomsCategoryList()
                atomsCategoryList(filter)

## Arguments

filter

  This argument controls if all categories or only main categories have to be displayed.

  `filter` is a single-string and its value should be:

  - `"all"`: All categories (main categories and sub-categories) are displayed.

  - `"main"`: Only main categories are displayed.

## Description

List available categories

## Examples

    atomsCategoryList();
    atomsCategoryList("all");
    atomsCategoryList("main");

## See also

- atomsList