Code style

standard guide for the generation of components with Atomico

This guide defines a standard for the generation of components with Atomico, with the objective of facilitating the collaborative development, scalability and maintenance of its components

The directory distribution is an important element when building components, ideally, this is declarative in content, eg:

│ └───${my-component}


  1. Only include one component per file.

  2. Only include one component per directory

  3. Define hooks in an isolated way to the components, in a different file and directory, a file if it can contain more than one hook

Component name

It is ideal that as an author you define a name or prefix that grouped one or more components, always define after the main name the objective to be represented in the UI, eg:

# Naming
# Single
# Group

The use of the atomic name is just an example, its use is not recommended for the declaration of the name of its component.

Component declaration

Webcomponents are ideal for the generation of transparent apis, allowing trabs of attributes/properties to manipulate or know the current state of the component.


  1. Always define the main tag <host/> as the return node

  2. Prefer the use of useProp if you are looking to manipulate the state of the prop and reflect this in the webcomponent as an attribute/property, keep using useState for private states.

  3. Prefer the use of reflect if you want to transparent the state of your component for a css selector, eg my-component [type="email"] or my-component[active]

  4. Prefer the use of default values, if you want to show the state of your component at all times

Component example

import { h, customElement, useProp } from "atomico";
import style from "./my-component.css";
* @type {import("atomico").Component}
* @param {Object} props
* @param {string} props.type
* @param {value} props.value
const MyComponent = ({ type }) => {
let [value, setValue] = useProp("value");
return (
<host shadowDom>
oninput={({ target: { value } }) => setValue(value)}
MyComponent.props = {
type: {
type: String,
reflect: true,
options: ["number", "date", "email", "phone"],
value: "text"
value: {
type: String,
value: "default message"
export default customElement("my-component", MyComponent);

using this @type {import("atomico").Component} fragment in the jsdoc, import the autocomplete rules for Typescript, consider it optional.