Aleksei Gurianov Guria

Reatom's Extensibility in Action: Build for Your Custom Needs

Reatom v1000 just left alpha with a bold promise — "state management that grows with you." But what does that actually mean when you hit the edge cases that every real application eventually encounters?

Many developers, including myself, started using Reatom during the alpha stage because it was already delivering significant value in production. The patterns I'll show you here aren't theoretical — they've been battle-tested in real projects. If you haven't seen the introductory article, it covers the basics well. This article goes deeper: we'll explore how Reatom's extensibility lets you bend the library to your domain instead of the other way around.

The core thesis is simple: Reatom's power comes from a small set of primitives — atom, action, computed, effect, and extensions — that you can override, hook into, and compose for your specific needs. Let's see wha

GNOME Extension Installer Script

This bash script allows you to manually install GNOME extensions from a ZIP file. It's a helpful tool for installing GNOME extensions from local files rather than using GNOME Extensions or other online sources.

Usage

Save the install_gnome_extension.sh script to your local machine.
Make the script executable:

// Define state and state updates
function ReduxState (state = Immutable.fromJS({items: []}), action) {
  switch (actions.type) {
    case 'addItem':
      return state.push('items', action.item)
  }

  return state
}

	{
	"name": "Pharmacy Mapping Rules",
	"presets": [
	{
	"name": "Pharmacy",
	"geometry": ["point", "area"],
	"primary": [
	{
	"key": "amenity",
	"val": "pharmacy"

	%%private(let keyStringifyRegexp = %re("/([=:@$/])/g"))
	%%private(let valueStringifyRegexp = %re("/([&;/])/g"))
	%%private(let keyParseRegexp = %re("/[=:@$]/"))
	%%private(let valueParseRegexp = %re("/[&;]/"))

	%%private(
	let encodeString = (str, regexp) =>
	Js.Global.encodeURI(Js.String2.replaceByRe(str, regexp, "/$1"))
	)

	<!DOCTYPE html>
	<html
	lang="en"
	xmlns="http://www.w3.org/1999/xhtml"
	prefix="og: http://ogp.me/ns# fb: http://www.facebook.com/2008/fbml"
	>
	<head>
	<meta http-equiv="refresh" content="2;url=https://bb-ui.dev.sg.salondev.net/review/08d7bd31-a7da-46e8-b63a-b47a434e09c0" />
	<!-- Facebook Open Graph meta tags
	documentation: https://developers.facebook.com/docs/sharing/opengraph -->

	import { useRef, useState, useEffect } from 'react';

	// Usage
	function App() {
	const [ref, isHovered] = useHover(ref);

	return (
	<div ref={ref}>
	{isHovered ? '😁' : '☹️'}
	</div>

	const REVISIT_PENALTY = 1.5
	const DEADEND_PENALTY = 100000
	const directions = ['left', 'right', 'up', 'down']
	const visitedScore = {}
	const getNextCoords = (x, y) => ({ left: [x-1, y], right: [x+1, y], up: [x, y-1], down: [x, y+1] })
	const getScore = (x, y) => visitedScore[`${x}:${y}`] \|\| 0
	const increaseScore = (x, y, n = 1) => visitedScore[`${x}:${y}`] = getScore(x, y) * REVISIT_PENALTY + n

	function strategy(move, canMove, x, y, maze) {
	const nextCoords = getNextCoords(x, y)

	/**
	* HTML5 / CSS3 Circle with Partial Border
	* http://stackoverflow.com/q/13059190/1397351
	*/
	* { margin: 0; padding: 0; }
	.circle {
	position: relative;
	margin: 7em auto;
	width: 16em; height: 16em;
	border-radius: 50%;

	import controller from './controller.js'
	import {Computed} from 'cerebral'
	import {set, copy} from 'cerebral/operators'
	import inquirer from 'inquirer'

	controller.addSignals({
	pageChanged: [ copy('input:page', 'state:page') ],
	scaffoldSelected: [
	() => console.log('scaffold'),
	() => { /* services.scaffold(options) */ },