DEV Community: Vivek Dudhatra

VoteEase : A Responsive Poll & Survey Web App Built with Angular 20

Vivek Dudhatra — Tue, 22 Jul 2025 06:46:26 +0000

Introduction

In todays digital era, expressing opinions and collecting feedback through polls and surveys is more relevant than ever. To make this experience smooth, intuitive, and engaging, I created VoteEase a fully responsive web application built using Angular 20.

What is VoteEase?

VoteEase is a platform where users can create polls and surveys, respond to those created by others, and track detailed response analytics. Whether you're looking to crowdsource opinions or just make interactive content for your community, VoteEase simplifies it all.

Key Features

User-Side Features

Participate in Polls and Surveys: Users can easily respond to active polls and surveys.
Percentage-Based Results: Clear and instant results displayed in percentage format.
Trending Page: Highlights the most popular or active polls and surveys.
Profile Page: Personal dashboard to track created and responded polls/surveys.
"How It Works" Page: Guides new users through the platform's flow.

Admin-Side (Poll/Survey Owner) Features

Dashboard Management: Admins can view and manage their polls/surveys.
Detailed Response View: Full insight into who responded and what options were chosen.
AG Grid Integration: Used for efficient tabular display of responses and data.
Active/Closed State Control: Polls and surveys can be marked as "active" or "closed" to manage participation.

UX & Technical Features

Fully Responsive Design: Optimized for all screen sizes.
Toastr Notifications: Clean, non-intrusive notifications for user actions.
Angular 20: Built with the latest Angular version for performance and maintainability.

Why I Built VoteEase

I wanted to create a project that combines data interaction, user input, and visual analytics in a clean, modern UI. VoteEase helped me dive deeper into Angular's ecosystem, especially with component-based architecture, state control, and UI libraries like AG Grid and Toastr.

Tech Stack

Frontend: Angular 20, HTML, SCSS/CSS, TypeScript
Libraries: ag-grid-angular, ngx-toastr
Design: Fully responsive layout with mobile-first approach

Final Thoughts

VoteEase is not just a projectit's a complete product that solves real user interaction needs in a simple yet powerful way. It demonstrates my ability to architect full-featured Angular apps with a focus on both functionality and user experience.

Future Work

-Poll Scheduling & Expiry : Allow poll and survey creators to set start and end times for automatic activation and closure.

-Comment Section Under Polls/Surveys : Enable users to leave comments or feedback under polls to promote engagement.

-Poll Categories : Let users assign categories (like Tech, Education, Entertainment) to their polls and surveys for better organization.

-Bookmark Polls/Surveys : Allow users to bookmark their favorite polls or surveys for later viewing or participation.

-Search Functionality : Implement a search bar to help users quickly find polls and surveys by keywords or categories.

Project Repository

You can explore the full source code of VoteEase on GitHub:

GitHub Repo : https://github.com/vivek1384/VoteEase-PollSurveyApp

Feel free to check out the code, raise issues, or contribute!

cricket-scorecard-app🏏

Vivek Dudhatra — Wed, 09 Jul 2025 05:31:46 +0000

Hey devs and cricket fans! 👋

I’m excited to share my latest personal project — a Cricket Scorecard Dashboard App that brings the thrill of live match scoring to the browser, built using Angular and JSON Server. If you’ve ever wanted to simulate a cricket match or build your own scoring app, this might be just the inspiration you need!

⚙️ What Is It?

This app is a real-time, match scoring dashboard designed for cricket match admins and scorers. From setting up teams to selecting players, scoring ball by ball, and generating commentary — it does everything you'd expect from a professional scoring system.

✨ Key Features

✅ Match Setup & Player Selection

Create a new match
Choose striker, non-striker, and opening bowler

✅ Score Updates

Update runs using buttons (0, 1, 2, 3, 4, 6, OUT)
All stats update in real-time

✅ Dismissal Handling

Support for various OUT types
Select the fielder for catches or runouts

✅ Live Commentary Generator

Automatically generates commentary for each delivery
Feels like Cricbuzz/Cricinfo 😄

✅ Innings Transition

Alert appears after 1st innings
Lets you switch bowler and batsmen for the next team

✅ Match Predictions

1st Innings: Predict final score from current run rate
2nd Innings: Show required run rate to win

✅ Partnership Tracker

Shows the current runs added by the batting pair

🛠 Tech Stack

Layer	Technology
Frontend	Angular 16+
Backend	JSON Server (Mock API)

⚠️ Important Detail

To begin every match fresh, you have to clear all previous match/player data from db.json(just clear the value for example you can see other teams data). This ensures no leftover stats affect the new game.

📦 How to Run It

Clone the repo

git clone https://github.com/vivek1384/cricket-scorecard-app.git
cd cricket-scorecard-app
npm install
npm i -g json-server
json-server --watch db.json --port 3001
ng s

Then open your browser at: http://localhost:4200

💡 Why I Built This

As a cricket fan and frontend developer, I wanted to mix my two passions into something fun and useful. This project helped me strengthen my component communication, service integration, and reactive programming skills in Angular — while building something exciting and real-world.

🚀 What's Next?

Ball-by-ball timeline history
Match history with login
Export match reports as PDF/CSV
Firebase or MongoDB backend
Real-time multiplayer scoring
Public spectator view (read-only)

📥 Try It Out

🧑‍💻 GitHub Repo:
👉 https://github.com/vivek1384/cricket-scorecard-app

Would love your feedback — drop a ⭐️ or fork it if you're interested in extending it!

🚀 Restaurant Booking App – Requirements & Real‑World Value

Vivek Dudhatra — Tue, 17 Jun 2025 04:39:48 +0000

Here’s my follow‑up article to my first post about building a Restaurant Booking App. In this one, I dive deeper into why the app exists, its core requirements, and how it benefits real users—from customers to restaurant owners.

First Article Link : https://dev.to/vivek_dudhatra/building-an-online-restaurant-reservation-advance-ordering-system-with-angular-886

🍽️ 1. Why This App Exists

Dining out should be easy—but often it isn't:

Long waits, no-shows, and booking confusion.

Manual tracking of tables and orders is outdated.

Customers crave convenience—reminders, pre-orders, seamless experience.

This app is designed to solve these friction points using these essentials:

📋 2. Project Requirements

A. Functional Requirements
🎯 Customer Side
Authentication: register/login securely.

Restaurant Browsing: view listings, menus, and availability.

Booking Flow:

Choose date/time and table size.

Optionally pre-order food.

History : past bookings

🧑‍💼 Admin (Restaurant) Side
Restaurant Registration/Login

Table Management: add/remove/manage time slots and capacities.

Menu Editing: full CRUD for menu items.

Booking Dashboard: view current & upcoming reservations, track pre-orders.

B. Technical Requirements
Frontend: Angular for responsive, modular UI.

Backend: JSON Server as lightweight mock API(For project development only).

Styling: CSS.

State & Persistence: LocalStorage/session support.

Extensible Architecture: ready for future upgrades (e.g., payments, ratings, real backend).

💡 3. How Users Benefit

For Dining Customers:
Skip lines: table reservation from anywhere.

Save time: pre-order while booking.

Get clarity: see live availability.

Better experience: reminders and booking history.

For Restaurant Owners:
Operational efficiency: digital booking dashboard.

Insights: data on peak hours and menu popularity.

Minimized no-shows: confirmations reduce last-minute dropouts.

Better prep: pre-orders help kitchen planning and reduce waste.

🎥 4. Quick Demo

GitHub Repo Link : https://github.com/vivek1384/Restaurant-Booking-App

📚 5. First Article

https://dev.to/vivek_dudhatra/building-an-online-restaurant-reservation-advance-ordering-system-with-angular-886

First article: DEV Community – My initial walkthrough

🔜 6. What’s Coming Next
I’m already working on:

⭐ User reviews and ratings

💳 Payment gateway integration

🌐 Multi-branch support for restaurant chains

📋 Better UI/UX

📱💻🖥️ Making it responsive

🚧 Real backend (Node.js + database)

📝 7. Final Thoughts
With a straight-to-the-point tech stack (Angular + JSON Server), this app shows how solving everyday restaurant friction is doable—and meaningful. Whether you're a developer honing your skills or a restaurant owner exploring tech, it’s a solid starting point.

angular #typescript #webdev #development

60 Interview question-answer of Angular 19 with follow-up question. Everyone should know. (31 - 60)

Vivek Dudhatra — Fri, 09 May 2025 10:40:50 +0000

31. What is ng-content and how does it work?
Answer: ng-content is used for content projection, allowing you to insert external HTML into a component's template.
Follow-up: How do you create multiple content slots?
=> Use named slots with select attribute, like.

32. What is the difference between ngClass and ngStyle?
Answer: ngClass is used for adding or removing CSS classes dynamically, while ngStyle is used for applying inline styles dynamically.
Follow-up: How do you conditionally apply a class in Angular?
=> Use ngClass with an object or array syntax, e.g., [ngClass]="{ 'active': isActive }".

33. What is a BehaviorSubject in Angular?
Answer: BehaviorSubject is a type of RxJS Subject that stores the current value and emits it to new subscribers.
Follow-up: When would you use a BehaviorSubject over a Subject?
=> Use BehaviorSubject when you need to emit the latest value to new
subscribers.

34. How do you implement lazy loading in Angular?
Answer: Lazy loading in Angular is implemented by using loadChildren in route defnitions, which loads modules only when needed.
Follow-up: What is the advantage of lazy loading?
=> It reduces initial load time by only loading modules required for the current view.

35. What is the RouterLink directive?
Answer: RouterLink is a directive used to navigate between views or routes in an Angular app. It binds the URL to a route.
Follow-up: How do you pass route parameters with RouterLink?
=> Use routerLink="/path/:id" and routerLinkActive to add active class to links.

36. What is the ngFor directive?
Answer: ngFor is a structural directive that iterates over an array or list and creates a template for each item.
Follow-up: How do you track items in ngFor for performance optimization?
=> Use trackBy to track items by a unique identifer, improving rendering performance.

37. What are HostListener and HostBinding in Angular?
Answer: HostListener allows you to listen for events on the host element, while HostBinding binds properties to the host element.
Follow-up: How do you use HostListener to listen for mouse events?
=> Use @hostlistener('event', ['$event']) to bind to DOM events like click, mouseenter, etc.

38. What are static and dynamic queries in Angular?
Answer: Static queries are resolved once, such as @ViewChild and @ContentChild with static: true. Dynamic queries are resolved during change detection with static: false.
Follow-up: When would you use static: true in @ViewChild?
=> Use static: true when you need the query result before the component’s view is initialized.

39. How do you create a custom form control in Angular?
Answer: To create a custom form control, implement the ControlValueAccessor interface to connect your custom component with Angular’s forms API.
Follow-up: What are the steps to implement ControlValueAccessor?
=> Implement writeValue(), registerOnChange(), and registerOnTouched()
methods in the custom component.

40. How do you optimize Angular applications for performance?
Answer: Optimizing Angular apps can include techniques like lazy loading, Ahead-of-Time (AOT) compilation, tree-shaking, and using
ChangeDetectionStrategy.OnPush.
Follow-up: How does tree-shaking improve performance?
=> Tree-shaking removes unused code during the build process, reducing bundle size.

41. What is the ngModel directive and how does it work?
Answer: ngModel is a directive used for two-way data binding in Angular. It binds input elements to component properties, enabling automatic synchronization between them.
Follow-up: How does two-way binding work with ngModel?
=> Two-way binding in ngModel is achieved by using the syntax [(ngModel)]="property", which binds the property to both the model and the view.

42. What is the purpose of ngOnChanges() lifecycle hook?
Answer: ngOnChanges() is called whenever any input property changes in a component. It receives a SimpleChanges object, which provides previous and current values of the inputs.
Follow-up: When is ngOnChanges() triggered in a component?
=> It is triggered whenever Angular detects changes in bound input properties.

43. What is the difference between HttpClient.get() and HttpClient.post() methods?
Answer: HttpClient.get() is used to retrieve data from a server, while HttpClient.post() is used to send data to the server.
Follow-up: How would you pass parameters with HttpClient.get()?
=> You can pass parameters using HttpParams with the params option in the
get() method.

44. What is the purpose of RxJS operators in Angular?
Answer: RxJS operators are used to compose and manipulate streams of data in Angular. They allow for handling asynchronous events such as
HTTP requests, user interactions, and more.
Follow-up: What is the difference between map and mergeMap operators?
=> map transforms the emitted value, while mergeMap fattens inner
Observables and merges their results.

45. How do you implement inter-component communication in Angular?
Answer: Inter-component communication can be achieved using @Input() and @Output() decorators, services, or a shared store.
Follow-up: When would you use a service for inter-component communication?
=> When you need to share data or functionality across components without directly passing data through inputs/outputs.

46. What is a singleton service in Angular?
Answer: A singleton service is a service that is instantiated once and shared across multiple components and other services.
Follow-up: How do you create a singleton service in Angular?
=> Use the providedIn: 'root' confguration in the @Injectable() decorator.

47. What is the role of ChangeDetectionStrategy in Angular?
Answer: ChangeDetectionStrategy determines how Angular checks for changes in the application. The default strategy is ChangeDetectionStrategy.Default, but ChangeDetectionStrategy.OnPush improves performance by checking for changes only when certain conditions are met.
Follow-up: How does OnPush change detection strategy improve performance?
=> It only checks components when their inputs change or events occur within them, reducing unnecessary checks.

48. What are Angular pipes and how do you use them?
Answer: Pipes are used for transforming data in templates. They can be used for formatting, fltering, or transforming values displayed in the
view.
Follow-up: How do you create a custom pipe in Angular?
=> Create a class with the @pipe decorator and implement the PipeTransform interface.

49. What is the difference between ViewChild and ContentChild?
Answer: ViewChild is used to query elements within the component's view, while ContentChild is used to query projected content inside the
component (via ng-content).
Follow-up: When would you use ViewChild over ContentChild?
=> Use ViewChild when you need to access elements in the component's view, not projected content.

50. What is the difference between Injector and ngOnInit() in Angular?
Answer: Injector is an Angular service used for accessing dependency injections manually, whereas ngOnInit() is a lifecycle hook that initializes component properties.
Follow-up: What is the use case for using an Injector?
=> You can use Injector when you need to manually instantiate a dependency at runtime.

51. What is the ngFor directive in Angular?
Answer: The ngFor directive is used to iterate over a list or array and create a template for each item in the list.
Follow-up: How do you optimize ngFor for large lists?
=> Use the trackBy function to track items by a unique identifer, improving rendering performance.

52. What is the difference between template-driven forms and reactive forms?
Answer: Template-driven forms are created using Angular directives in the template and are more declarative, while reactive forms are created
in the component and provide more control over the form's structure and validation.
Follow-up: When would you use template-driven forms over reactive forms?
=> Template-driven forms are better for simple forms, while reactive
forms are more suitable for complex, dynamic forms.

53. How do you create an Angular service?
Answer: Angular services are created by using the @Injectable() decorator and are typically provided in the root or module to be injected into components or other services.
Follow-up: How do you provide a service at the component level?
=> Use the providers array in the component's metadata to provide the service locally.

54. What is the purpose of the @Injectable() decorator in Angular?
Answer: The @Injectable() decorator marks a class as a service that can be injected into other components or services via Angular’s
dependency injection system.
Follow-up: How does Angular handle dependency injection?
=> Angular uses the @Inject() decorator or constructor injection to provide the required dependencies.

55. What is the difference between a module and a component in Angular?
Answer: A module is a collection of components, services, and other Angular elements that work together, while a component is a unit of the
user interface with its own view and logic.
Follow-up: How are modules useful in large Angular applications?
=> Modules help organize code into cohesive blocks, making it easier to
manage and scale the application.

56. What are the advantages of Angular over other frameworks like React and Vue?
Answer: Angular is a complete, opinionated framework that offers tools like two-way data binding, routing, and state management. It is a full fledged solution for building enterprise-scale applications.
Follow-up: What makes Angular more suitable for large applications?
=> Its powerful features like dependency injection, strong typing (via
TypeScript), and built-in tools for forms, routing, and HTTP.

57. How do you enable lazy loading in Angular?
Answer: Lazy loading is enabled by defining route configurations with loadChildren in Angular's router module, which loads a module only when
a route is accessed.
Follow-up: What is the beneft of using lazy loading?
=> It reduces the initial loading time of the application by loading modules on demand.

58. What is an Observable in Angular?
Answer: An Observable is a stream of data that can emit multiple values over time. In Angular, it is used to handle asynchronous operations
such as HTTP requests, user inputs, or events.
Follow-up: How do you handle an Observable in Angular?
=> Use RxJS operators like subscribe(), map(), catchError, etc., to process the emitted
values.

59. What are Angular modules and how are they used? **
**Answer: Angular modules are containers for related components, services, and other Angular entities. They provide an organized structure for the app.
Follow-up: What is the role of AppModule in an Angular application?
=> AppModule is the root module that bootstraps the Angular application.

60. What is the role of Angular's ngZone?
Answer: ngZone is used to manage Angular's change detection mechanism. It allows the app to run outside of Angular's zone, helping to
improve performance, particularly for long-running tasks like animations or WebSocket subscriptions.
Follow-up: How does ngZone affect performance in Angular?
=> ngZone helps in reducing unnecessary change detection cycles, optimizing performance by only triggering updates when necessary.

60 Interview question-answer of Angular 19 with follow-up question. Everyone should know. (1 - 30)

Vivek Dudhatra — Fri, 09 May 2025 10:14:39 +0000

1. What is Angular?
Answer: Angular is a TypeScript-based open-source front-end web application framework developed by Google. It helps build single-page
applications (SPAs) using a component-based architecture.
Follow-up: How is Angular different from AngularJS?
=> Angular uses TypeScript, has a component-based architecture, and offers improved performance and modularity over AngularJS.

2. What are Angular components?
Answer: Components are the building blocks of an Angular app. They control views (templates), styles, and business logic.
Follow-up: How do you defne a component?
=> Using the @Component decorator with metadata such as selector, templateUrl, etc.

3. What is the purpose of NgModules?
Answer: NgModules group related components, directives, pipes, and services. The root module (AppModule) bootstraps the app.
Follow-up: What's the difference between root and feature modules?
=> Root modules start the app; feature modules organize code and enable
lazy loading.

4. What is the role of the Angular CLI?
Answer: Angular CLI is a command-line tool to scaffold, develop, and maintain Angular applications efciently.
Follow-up: How do you create a component using the CLI?
=> Run ng generate component component-name.

5. What is the difference between ngModel and FormControl?
Answer: ngModel is used in template-driven forms, while FormControl is used in reactive forms for programmatic control.
Follow-up: Which one is better for complex validation?
=> FormControl in reactive form.

6. What is Data Binding?
Answer: Data binding connects data between the component and the view. Angular supports one-way and two-way data binding.
Follow-up: What syntax is used for two-way binding?
=> [(ngModel)]="property".

7. What is a directive in Angular?
Answer: Directives are instructions in the DOM. There are structural (e.g., ngIf, *ngFor) and attribute directives (e.g., ngClass, ngStyle).
**Follow-up*: How do you create a custom directive?
=> Use @Directive decorator and implement logic inside HostListener or HostBinding.

8. What is a pipe?
Answer: Pipes transform data in templates (e.g., date formatting, currency, uppercase).
Follow-up: How do you create a custom pipe?
=> Use @pipe decorator and implement the PipeTransform interface.

9. What is dependency injection?
Answer: A design pattern Angular uses to provide dependencies (services) to components or other services.
Follow-up: What are providers?
=> Tokens that tell Angular how to create or deliver a dependency.

10. What is the difference between constructor and ngOnInit()?
Answer: Constructor is used for dependency injection, ngOnInit() is used for initialization logic after component creation.
Follow-up: Which lifecycle hook is called first?
=> Constructor is called before ngOnInit().

11. What is the difference between ngOnInit() and ngAfterViewInit()?
Answer: ngOnInit() is called once the component's inputs are initialized, while ngAfterViewInit() is called after Angular initializes the component's view.
Follow-up: When would you use ngAfterViewInit()?
=> If you need to access the component’s view after it's fully initialized, such as querying child components or DOM elements.

12. What are lifecycle hooks in Angular?
Answer: Lifecycle hooks are methods that allow you to hook into the lifecycle of Angular components or directives (e.g., ngOnInit, ngOnDestroy, etc.).
Follow-up: What is the most commonly used lifecycle hook?
=> ngOnInit is commonly used for initialization tasks.

13. What is a service in Angular?
Answer: A service is a class used to share data and logic across components in Angular. Services can be injected into components via
Angular’s Dependency Injection system.
Follow-up: How do you make a service singleton in Angular?
=> By providing the service in the root injector using { providedIn: 'root'}.

14. What is RxJS and how is it used in Angular?
Answer: RxJS (Reactive Extensions for JavaScript) is a library for reactive programming using Observables. Angular uses RxJS for
asynchronous programming and handling events, HTTP requests, etc.
Follow-up: What is the difference between subscribe() and async pipe?
=> subscribe() is imperative, while async pipe is declarative and used in
templates to automatically subscribe and unsubscribe from Observables.

15. What is the Angular Router and how does it work?
Answer: The Angular Router is used for navigation and rendering views based on URLs. It maps paths to components.
Follow-up: What is lazy loading in Angular routing?
=> Lazy loading loads modules only when they are needed, improving application performance.

16. What are route guards in Angular?
Answer: Route guards are used to prevent or allow navigation to routes based on certain conditions, like authentication or authorization.
Follow-up: What are the different types of route guards?
=> CanActivate, CanDeactivate, CanLoad, and Resolve.

17. What is the ngIf directive?
Answer: The ngIf directive conditionally includes or removes an element from the DOM based on an expression.
Follow-up: How does ngIf differ from ngFor?
=> ngIf is for conditional rendering, whereas ngFor is for iterating over a list of items.

18. How do you handle errors in Angular services?
Answer: Errors can be handled using RxJS catchError operator in HTTP requests, or try-catch blocks in synchronous code.
Follow-up: What is the difference between throwError and of in error handling?
=> throwError propagates errors, while of emits a safe fallback
value.

19. What is the Angular CommonModule?
Answer: CommonModule is a module that provides common directives like ngIf, ngFor, and pipes such as DatePipe and UpperCasePipe. It is
essential for most modules.
Follow-up: Why is CommonModule used instead of BrowserModule in feature modules?
=> BrowserModule is for the root module, whereas CommonModule is for feature modules.

20. What are forms in Angular?
Answer: Forms in Angular can be either template-driven or reactive. Template-driven forms use directives in the template, while reactive forms
are built programmatically in the component.
Follow-up: What are FormControl and FormGroup?
=> FormControl represents a single form element, while FormGroup groups multiple controls.

21. What is the difference between ngModel and FormControl?
Answer: ngModel is used in template-driven forms for two-way data binding, while FormControl is used in reactive forms to handle form input
and validation.
Follow-up: Which one is better for large, complex forms?
=> FormControl in reactive forms is more suitable for larger, more complex forms.

22. What are Observables in Angular?
Answer: Observables are used for handling asynchronous operations in Angular, such as HTTP requests, user input, and events. They are a core
part of Angular’s reactive programming model.
Follow-up: How do you unsubscribe from an Observable in Angular?
=> Using unsubscribe() or leveraging the async pipe in templates.

23. What is the async pipe in Angular?
Answer: The async pipe subscribes to an Observable or Promise and returns the latest value. It automatically unsubscribes when the
component is destroyed.
Follow-up: Why should we use the async pipe instead of subscribe() in templates?
=> The async pipe handles subscriptions and unsubscriptions
automatically, making it more efcient.

24. What is the purpose of HttpClient in Angular?
Answer: HttpClient is a service used to make HTTP requests to external APIs, with built-in support for observables, JSON parsing, and error
handling.
Follow-up: How do you handle HTTP error responses?
=> Use RxJS operators like catchError to catch errors and handle them gracefully.

25. What are decorators in Angular?
Answer: Decorators are special types of functions used to defne and confgure Angular components, services, directives, and modules.
Follow-up: How do you create a custom decorator in Angular?
=> Use @DecoratorName and attach it to classes, properties, or methods to add metadata.

26. What is the role of ngOnDestroy()?
Answer: ngOnDestroy() is a lifecycle hook that is called when a component or directive is destroyed. It is used for cleanup tasks like
unsubscribing from Observables or removing event listeners.
Follow-up: Why do we need to manually unsubscribe in ngOnDestroy()?
=> To prevent memory leaks by cleaning up subscriptions or other
resources when the component is destroyed.

27. How does Angular handle change detection?
Answer: Angular uses a change detection mechanism to update the view whenever a model (data) changes. It uses a dirty checking
mechanism with zones to track changes.
Follow-up: What is the difference between OnPush and default change detection strategies?
=>OnPush checks for changes only when input properties change or events are triggered within the component.

28. What is the difference between a pure and impure pipe?
Answer: A pure pipe is executed only when Angular detects a change in the input value, whereas an impure pipe is executed for every change
detection cycle.
Follow-up: When would you use an impure pipe?
=> For cases where the input data may change externally, like when using an array that gets modified outside the pipe.

29. What is the @Input() decorator?
Answer: @Input() is used to pass data from a parent component to a child component.
Follow-up: What is the difference between @Input() and @Output() decorators?
=> @Input() is for passing data down from parent to child, while @Output() is for emitting events from child to parent.

30. What are Angular services and how are they used?
Answer: Angular services are reusable business logic or data access layers that can be injected into components, directives, and other
services.
Follow-up: How do you inject a service into a component?
=> Use Angular's Dependency Injection (DI) system with the constructor of the component.

🎟️ BookTheScene – An Event Booking Web App Built with Angular 19

Vivek Dudhatra — Wed, 07 May 2025 09:51:35 +0000

🎟️ I Built an Event Booking App Using Angular 19 – Here's How It Works

In this post, I’ll walk you through the web app I built using Angular 19 and JSON Server — a fully functional Event Booking platform that allows users to log in, host events, book tickets, and manage everything from their profile page.

Whether you're an organizer or an attendee, this app has something for you. Let’s dive in!

🔧 Tech Stack

Frontend: Angular 19
Backend: JSON Server (mock API)
Language: TypeScript

✨ Core Features

User Authentication – Login and signup with session-based state
Host an Event – Create and publish your own events
Book Tickets – Browse events and book your seat
Profile Dashboard – View and manage bookings and hosted events

🎥 Demo

Here’s a short screen-recorded demo on YouTube showing how the app works:

👉 https://youtu.be/fXjFSTUwmjA?si=a9P04Ck6inrteYKi

📚 What I Learned

Leveraging Angular 19's new features like standalone components, inject(), and Signals
Using JSON Server to simulate backend APIs
Managing dynamic routing and forms
Creating reusable UI components
Structuring a real-world, feature-complete Angular project

✅ Final Touches

At this point, the app includes the complete user flow:

Signup/login
Hosting and managing events
Booking tickets
A single dashboard to handle it all

It was a great hands-on project that helped me apply and refine my Angular skills.

🔗 Links

💻 GitHub Repo: https://github.com/vivek1384/Event-hosting-and-booking
🌐 Live Demo : https://youtu.be/fXjFSTUwmjA?si=a9P04Ck6inrteYKi
📫 Connect with me on https://www.linkedin.com/in/vivek-dudhatra/

🏷️ Tags

angular #webdev #projectshowcase #javascript #jsonserver

🏦 Building a Bank Admin Management System with Angular

Vivek Dudhatra — Tue, 06 May 2025 09:45:20 +0000

As part of my journey in web development, I recently completed building a Bank Admin Management System. This Angular-based web application is designed for internal bank staff to manage user accounts, transactions, and loan management efficiently. In this post, I’ll walk you through the features, the tech stack, and how I approached the development of this application.

🚀 Project Overview
The Bank Admin Management System is a comprehensive tool built to help bank staff manage user accounts, handle transactions, and oversee loan processing. The app features a mock backend powered by JSON Server, allowing staff to perform various administrative tasks such as:

Creating and managing user accounts.

Processing deposits, withdrawals, and EMI payments.

Viewing transaction history.

Managing loan types and approving loans based on users' CBIL scores.

This project was built using Angular, and I leveraged Angular’s powerful features like forms, services, and routing to make the app fully functional.

🧩 Features of the Bank Admin Management System

User Account Management Create new user accounts: Admins can fill out a form to create new user accounts, generating unique account numbers for each.

View and search users: Admins can search for users by account number, view account balances, and manage user details.

Transaction Management Deposit and Withdraw: Admins can deposit or withdraw funds from user accounts using their account number.

Track Transactions: Every transaction (deposit, withdrawal, EMI payment) is logged with transaction IDs, which can be filtered by type or date.

Loan Management Loan Approval: Based on users' CBIL scores, admins can approve loans, assign loan amounts, and set EMI structures.

EMI Payments: Admins can track and process EMI payments, marking them as paid and keeping track of remaining payments.

View All Approved Loans: Admins can view all approved loans and their status.

Admin-Controlled Loan Types Add/Edit Loan Types: Admins can define new loan types, specifying the interest rate, maximum loan amount, and repayment period.

Manage Existing Loan Types: The app allows admins to edit or delete loan types as needed.

⚙️ Tech Stack
Frontend: Angular

Backend: JSON Server (mock API)

Other Tools: Angular Forms, Angular Services, Router

🛠️ How I Built It

Angular for Frontend
I chose Angular for the frontend because of its powerful features, especially the Reactive Forms for handling form inputs and Services for interacting with the mock backend (JSON Server). The app was developed using Angular CLI, which provided a solid structure for the project.
JSON Server for Mock Backend
I used JSON Server as the backend to simulate a real API. This allowed me to quickly prototype and implement CRUD operations without having to set up a real backend. The mock data is stored in a db.json file, and JSON Server watches this file to simulate database interactions.
UI/UX
For the user interface, I kept things simple and clean. Admins interact with forms, tables, and buttons that are easy to navigate. I ensured the app is intuitive, with clear labels and feedback messages.

📊 Final Thoughts
This project was a great way to strengthen my understanding of Angular, mock APIs, and building administrative dashboards. It gave me hands-on experience with Angular services, and routing, while also introducing me to JSON Server for rapid prototyping.

Although the app is designed for internal use, the principles and features can easily be extended for real-world banking systems or admin dashboards. I look forward to improving the system with more features and better UI/UX in future updates.

Feel free to check out the code on GitHub. Let me know your thoughts or any improvements I can make!

Link : https://github.com/vivek1384/
Check it out on youtube : https://youtu.be/bU_dT778710

Angular #WebDevelopment #BankingApp

AdminDashboard #JSONServer #AngularCLI #ResponsiveDesign

MockAPI #UI/UX #DevTo

Building an Online Restaurant Reservation & Advance Ordering System with Angular

Vivek Dudhatra — Mon, 05 May 2025 11:04:53 +0000

Managing a restaurant’s reservations and orders can quickly become overwhelming, especially when handling everything manually. To simplify this process, I developed a personal restaurant software using Angular, designed to streamline:

Online table reservations

Advance food ordering

Efficient management for the restaurant admin

The goal is to provide an easy-to-use platform that benefits both customers and restaurant staff, improving the overall dining experience.

🍽️ How It Works
The platform supports two main roles: Customers and Restaurant Admins. Here’s how each journey unfolds:

👤 Customer Journey
Sign Up / Log In – Create or log into an account for a personalized experience.

Access Home Page – Browse available table types (e.g., 2-seater, 4-seater) and time slots.

Choose a Table & Time – Select preferred seating and time for the reservation.

View Menu & Order in Advance – Browse through the menu, add dishes to the cart, and confirm the order before arrival.

Receive Confirmation – Get a booking and order confirmation, complete with estimated dining time.

🍴 Restaurant Admin Journey
Sign Up / Log In – Secure admin login to manage restaurant operations.

Manage Reservations – View and accept or decline table bookings.

View & Manage Orders – See incoming food orders, mark them as "in preparation" or "served."

Track Overall Status – Stay on top of all reservations and orders from the dashboard.

🔄 Shared Capabilities for Both Users
The application includes several features to enhance user experience:

Profile Management – Personal details and booking history.

Reservation History – Access to past and upcoming reservations for easy management.

Order Tracking – Customers can see the status of their food orders in real time.

⚙️ Built Using Angular
This project leverages Angular 19 and its modern features to provide a smooth and scalable experience:

Modular Standalone Components – Cleanly organized components for better maintenance and scalability.

Lazy Loading – Efficient routing to load only the necessary components on demand.

Reactive Forms – Handles complex forms for table reservations and food orders with dynamic validation and control.

Signals for Reactive UI – Built-in reactivity for dynamic updates, such as real-time order status changes.

The app is fully responsive, ensuring a great experience across both desktop and mobile platforms.

🌱 Real Impact
This project is more than just a functional web application — it’s about optimizing the restaurant experience for both customers and admins. By enabling advance food ordering and simplifying table reservations, the system helps:

Reduce wait times for customers

Improve order accuracy by receiving orders in advance

Enable restaurant admins to manage operations efficiently

🚀 What’s Coming Next?
Integration with real backend services (e.g., Firebase or Node.js)

Payment gateway support for online payments

Real-time updates for order preparation status

PWA features for mobile-first accessibility

If you're passionate about building restaurant management tools or Angular applications, I’d love to hear your feedback!

To check it out on GitHub: https://github.com/vivek1384/Restaurant-Booking-App

Angular #WebApp #RestaurantManagement #OnlineOrdering #TableReservation #AngularDevelopment #FrontendDevelopment

🚗 Introducing RideCircle: A Step Towards a Sustainable Future 🌍

Vivek Dudhatra — Sat, 03 May 2025 11:59:03 +0000

I’m excited to share RideCircle – a ride-sharing platform where users can offer and seek rides. This project not only focuses on convenience but also on creating a positive impact on society and the environment. Here are some of the key benefits:

1️⃣ Improve Air Quality – By reducing the number of cars on the road, RideCircle helps lower emissions, leading to cleaner air.

2️⃣ Increased Public Health – Fewer cars mean reduced air pollution, resulting in better health outcomes for everyone.

3️⃣ Economic Benefits – Both ride seekers and providers save on travel costs, making it an affordable solution for all.

4️⃣ Enhanced Urban Spaces – By reducing traffic, RideCircle contributes to more pedestrian-friendly and enjoyable city spaces.

5️⃣ Reduce Traffic Congestion – Carpooling minimizes the number of vehicles on the road, easing congestion and reducing travel time.

6️⃣ Increase Use of Our App – With its user-friendly design, RideCircle fosters a growing community of engaged users who value convenience and sustainability.

7️⃣ Social Equity – RideCircle offers an affordable, accessible transportation solution for all, enhancing mobility for everyone, regardless of income.

8️⃣ Climate Change Mitigation – By promoting shared rides, RideCircle plays a key role in tackling climate change through reduced emissions.

9️⃣ Community Engagement – Our platform connects people based on shared routes, building stronger social ties and fostering local communities.

🌱 Join the RideCircle movement and help make a real difference!

Angular #Webdev #TypeScript

Check out project on GitHub : https://github.com/vivek1384/Ride-Circle

Building a Ride-Sharing Platform to Reduce Traffic and Promote Smarter Travel

Vivek Dudhatra — Fri, 02 May 2025 05:06:31 +0000

Urban congestion has become a growing challenge worldwide, with more vehicles on the roads than ever before. The result? Wasted hours, increased air pollution, and rising frustration among daily commuters.

To help address this issue, I developed a ride-sharing web application using Angular, aimed at making shared commuting effortless, accessible, and reliable. The platform enables users to either offer a ride or find one based on their route, with the primary goal of reducing redundant trips and encouraging smarter travel choices.

🚗 How It Works
The platform supports two core user roles: Riders and Drivers. Here's how each journey unfolds:

👤 Rider Journey
Sign Up / Log In
Access the Home Page
Enter Pickup and Drop Location
View a list or map of available rides
Request a Ride that fits their needs
Wait for the driver to accept or decline
Complete the ride when the journey ends

🚘 Driver Journey
Sign Up / Log In
Navigate to the Dashboard
Add a New Ride with route details and timing
Set the number of available seats and fare (if any)
Publish the ride
Receive and manage ride requests
Complete the ride and rate the riders

🔄 Shared Capabilities for Both Users
The application includes several helpful features to support both roles:

Profile Management
Ride History (Past and Upcoming)
In-App Messaging for communication

⚙️ Built Using Angular
The app is powered by Angular 19, taking advantage of:

Modular standalone components
Modern routing and lazy loading
Reactive Forms and real-time data binding
Clean and scalable architecture

The UI is responsive and accessible across desktop and mobile browsers, allowing users to manage rides on the go.

🌱 Real Impact
This project is about more than just functionality. It’s about encouraging carpooling habits, cutting down on fuel consumption, reducing vehicle emissions, and helping communities travel more efficiently.

By simplifying ride-sharing into a streamlined digital experience, the app supports a cleaner, more connected future for urban commuting.

🚀 What’s Coming Next?
Integration of online payment systems
Real-time route optimization based on traffic
Support for multi-stop rides
Mobile app version for wider accessibility

If you're passionate about solving traffic problems or building meaningful web applications, I’d love to connect and hear your thoughts!

To check it out in Github : https://github.com/vivek1384/Ride-Circle

Angular #RideSharing #WebApp #SmartTransport #TrafficSolutions #CleanCommute #FrontendDevelopment

🚀 I Built an Online Food Ordering App with Angular 19 – Here's How!

Vivek Dudhatra — Wed, 30 Apr 2025 04:21:30 +0000

Hey Dev Community! 👋

I'm excited to share my latest project—a full-featured online food ordering platform built with Angular 19 and JSON Server. It includes multiple user roles, real-time order updates, and admin management features.

🧑‍🍳 App Overview

My app has 3 main roles:

Users can:

Browse restaurants and place orders online
Chat with restaurant admins for order queries

Restaurant Admins can:

View/manage their restaurant's orders
Handle customer messages

Super Admin can:

Monitor all restaurants, users, and orders
Perform full CRUD operations on any data

⚙️ Tech Stack

🔥 Angular 19 (standalone components, signals, inject)
🛠 JSON Server (mock REST API)

💡 Key Features

Clean UI with role-based navigation
Order handling
Centralized super admin dashboard
Component-based design for scalability

🔍 What I Learned

How to build modular Angular apps using standalone components
Creating reusable services and handling state with signals
Structuring RESTful JSON Server backends for real use cases
Building scalable role-based access systems

📸 Sneak Peek

💬 What's Next?

I'm planning to:
Add Firebase or MongoDB for persistent storage
Integrate real-time chat using WebSockets
Deploy the app publicly

🌐 Check Out the Code
GitHub Repo: https://github.com/vivek1384/Online-food-order-app
Feel free to clone, fork, or contribute!