https://github.com/rama7993/cron-evaluator
Cron Expression & Recurrence Pattern Visualizer
https://github.com/rama7993/cron-evaluator
angular
Last synced: about 1 month ago
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Cron Expression & Recurrence Pattern Visualizer
- Host: GitHub
- URL: https://github.com/rama7993/cron-evaluator
- Owner: rama7993
- Created: 2025-08-15T17:02:19.000Z (11 months ago)
- Default Branch: main
- Last Pushed: 2025-08-15T17:09:22.000Z (11 months ago)
- Last Synced: 2025-08-29T00:38:01.673Z (10 months ago)
- Topics: angular
- Language: TypeScript
- Homepage: https://cron-evaluator.vercel.app/
- Size: 10.7 KB
- Stars: 0
- Watchers: 0
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Cron Expression & Recurrence Pattern Visualizer
An Angular application for parsing **cron expressions** and building **human-readable recurrence schedules**.
The tool has two main modules:
1. **Cron Expression Visualizer** – Parses a 6-field cron expression and displays each component in real-time.
2. **Recurrence Pattern Generator** – Lets users configure daily, weekly, or monthly schedules through a simple form.
---
## 🚀 Features
### **Task 1: Cron Expression Visualizer**
- Enter a complete cron expression:
- Real-time parsing into **seconds**, **minutes**, **hours**, **days**, **month**, and **day of week**.
- Recognizes both numeric and text values (e.g., `JAN`, `MON`).
- Highlights active fields and marks invalid inputs.
- Handles extra spaces gracefully.
- Resets to defaults (`*`) for incomplete or invalid expressions.
### **Task 2: Recurrence Pattern Generator**
- Select **Daily**, **Weekly**, or **Monthly** schedule types.
- Choose times, days, or dates dynamically.
- Generates natural language descriptions:
- Daily → `Runs every day at 08:00 AM`
- Weekly → `Runs every week on Monday and Wednesday at 09:30 AM`
- Monthly → `Runs every month on the 15th at 10:00 AM`
- Supports multiple weekly days and proper ordinal date formatting.
---
## 🛠 Tech Stack
- **Frontend Framework:** Angular
- **Language:** TypeScript
- **UI:** HTML, CSS
- **Extras:** Cron parsing, recurrence helpers, form-based UI
---
## ⚙️ Installation & Setup
```bash
# 1. Clone the repository
git clone https://github.com/yourusername/cron_angular.git
cd cron_angular
# 2. Install dependencies
npm install
# 3. Start the development server
ng serve
# 4. Open the app in your browser
http://localhost:4200/
# CronAngular
This project was generated using [Angular CLI](https://github.com/angular/angular-cli) version 19.2.7.
## Development server
To start a local development server, run:
```bash
ng serve
```
Once the server is running, open your browser and navigate to `http://localhost:4200/`. The application will automatically reload whenever you modify any of the source files.
## Code scaffolding
Angular CLI includes powerful code scaffolding tools. To generate a new component, run:
```bash
ng generate component component-name
```
For a complete list of available schematics (such as `components`, `directives`, or `pipes`), run:
```bash
ng generate --help
```
## Building
To build the project run:
```bash
ng build
```
This will compile your project and store the build artifacts in the `dist/` directory. By default, the production build optimizes your application for performance and speed.
## Running unit tests
To execute unit tests with the [Karma](https://karma-runner.github.io) test runner, use the following command:
```bash
ng test
```
## Running end-to-end tests
For end-to-end (e2e) testing, run:
```bash
ng e2e
```
Angular CLI does not come with an end-to-end testing framework by default. You can choose one that suits your needs.
## Additional Resources
For more information on using the Angular CLI, including detailed command references, visit the [Angular CLI Overview and Command Reference](https://angular.dev/tools/cli) page.