Custom Form Validation in Angular | Custom Validation with Regex | Reactive Forms Best Practices
📌 Welcome to Engineer’s Coding Hub! In this full Angular tutorial, you'll learn Form Validation in Angular using Reactive Forms, including Custom Validation, Regex-Based Pattern Validation, and Best Practices to build robust and scalable forms in Angular.
👉 This is a 33-minute complete frontend application where we build a form and add all necessary validations like Email, Contact Number, Required fields, and much more!
Whether you're preparing for Angular Interviews, working on a real-world project, or just learning Angular as a frontend developer, this video is a must-watch.
Timestamps (Chapters):
00:00 - Introduction
01:15 - Setup Angular Project
03:45 - Create Form with Reactive Forms
06:30 - Add Built-in Validators (required, minLength, maxLength)
10:20 - Custom Validator Function (Example: username not allowed)
14:50 - Regex Pattern Validation (Email, Contact Number)
20:15 - Dynamic Error Handling with CSS
24:40 - Submit Button Enable/Disable Logic
27:00 - Displaying Error Messages Dynamically
30:10 - Best Practices in Angular Form Validation
32:50 - Final Recap & Summary
📚 What You'll Learn in This Video:
How to use Reactive Forms in Angular
Implementing custom validators
Using Regular Expressions (Regex) for Email, Mobile Number, etc.
Handling form errors dynamically
Best practices to follow in Angular Form Validation
Full form validation project from scratch
Enhance user experience with validation feedback
💡 Technologies Used:
Angular 15+
TypeScript
HTML & CSS
Reactive Forms Module
Angular CLI
Visual Studio Code
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