https://github.com/nevinmathew/countdown-timer

https://github.com/nevinmathew/countdown-timer

babel javascript react redux-toolkit vite webpack

Last synced: 26 days ago
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• Host: GitHub
• URL: https://github.com/nevinmathew/countdown-timer
• Owner: nevinmathew
• Created: 2024-04-06T15:45:56.000Z (7 months ago)
• Default Branch: main
• Last Pushed: 2024-05-07T16:30:06.000Z (6 months ago)
• Last Synced: 2024-09-28T02:41:00.239Z (about 1 month ago)
• Topics: babel, javascript, react, redux-toolkit, vite, webpack
• Language: JavaScript
• Homepage:
• Size: 20.5 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Countdown Timer

A simple countdown timer built using React and Redux toolkit. This project demonstrates how to create a countdown timer that updates in real-time and persists across page reloads using Redux toolkit for state management. Additionally, the project is configured with Vite for optimized development.

## Features

- Set a target date and time for the countdown.

- Displays the remaining time in days, hours, minutes, and seconds.

- Automatically updates the countdown every second.

- Persists the countdown across page reloads using local storage.

- Configured with Vite for efficient development.

## Configuration

The project is configured with Vite for fast and optimized development. The Vite configuration is located in the vite.config.js file and sets up the development server port to 4200.

```javascript

  import { defineConfig } from 'vite'

  import react from '@vitejs/plugin-react'

  

  export default defineConfig({

    plugins: [react()],

    server: {

      port: 4200,

    },

  })

```

## How It Works

The countdown timer is implemented using React components and Redux state management. Here's a brief overview of how it works:

- The `Countdown` component is responsible for rendering the countdown UI and updating the current time.

- Redux toolkit is used to store the target date and current time.

- The `calculateTimeRemaining` function calculates the time remaining until the target date based on the current time.

- The `checkAndUpdateTime` function checks if the target date has expired or needs to be updated, and updates it accordingly.

- The countdown updates every second using setInterval, dispatching actions to update the current time in the Redux store.