Пример 100: Удвоенный счетчик

import baseClasses from '~/ui.common.module.scss'
import btnClasses from '~/ui.button.module.scss'
import { AbstractService } from '@pravosleva/reactive-engine'
import { ReactiveEngine } from '@pravosleva/reactive-engine/react'
import clsx from 'clsx'

class Logic extends AbstractService {
  public counter = this.engine.signal<number>(0, 'example-100:signal:counter')
  public doubledCounter = this.engine.computed<number>(() => this.counter.value * 2, 'example-100:computed:counter')

  public inc = () => {
    this.counter.value += 1
  }
}

const engine = new ReactiveEngine({
  logger: {
    isEnabled: true, // Включаем логгер
    traceTime: true, // Добавляем вывод таймингов по желанию
    filter: /^example-*/ // Можно фильтровать только нужные логи
  }
})

export const Example100 = () => {
  const logic = engine.inject(Logic)
  const counter = engine.use(logic.counter)
  const doubledCounter = engine.use(logic.doubledCounter)

  return (
    <div className={clsx(baseClasses.unit, baseClasses.stack2)}>
      <div className={baseClasses.absoluteUnitLabel}>Computed</div>
      <code>{counter} | x2 = {doubledCounter}</code>
      <div className={baseClasses.catSection}>
        <button
          onClick={logic.inc}
          className={clsx(btnClasses.neonBtn, btnClasses['neonBtn--primary'], btnClasses['neonBtn--outlined'])}
        >INC</button>
      </div>
    </div>
  )
}