JavaScript Full Course | Lecture 4 | Form Validation Using JavaScript

Veröffentlicht am: 03 Juli 2026
auf dem Kanal: inacademic

📌 JavaScript Full Course | Lecture 4 | Form Validation Using JavaScript | Google Form Clone Validation

Welcome to Inacademic!

In Lecture 4 of our JavaScript Full Course, you'll learn how to perform client-side form validation using JavaScript by building a Google Form-style validation system. Form validation is one of the most essential skills in web development, ensuring that users enter valid and complete information before submitting a form.

In this lecture, you'll learn how to validate different input fields using JavaScript, apply regular expressions (Regex), display meaningful error messages, and prevent invalid form submissions with real-world examples.

📚 Topics Covered:
✅ Introduction to Form Validation
✅ Client-Side vs Server-Side Validation
✅ Creating a Google Form Clone
✅ Accessing Form Elements Using JavaScript
✅ Validating Input Fields
✅ Name Validation
✅ Email Validation
✅ Mobile Number Validation
✅ Password Validation
✅ Confirm Password Validation
✅ Required Field Validation
✅ Regular Expressions (Regex) for Validation
✅ Validating Text Length
✅ Preventing Empty Input
✅ Displaying Custom Error Messages
✅ Using `alert()` for Validation
✅ Preventing Form Submission
✅ Using `onsubmit` Event
✅ Real-Time Input Validation
✅ Best Practices for Form Validation
✅ Complete Google Form Validation Project

🎯 This Video Is Perfect For:
• Complete Beginners
• BCA, MCA, B.Tech & Diploma Students
• Frontend Development Learners
• Full Stack Development Aspirants
• Students Preparing for Placements
• Anyone Interested in JavaScript Projects

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At Inacademic, we provide practical programming tutorials, project-based learning, interview preparation, and industry-focused courses to help students build strong technical skills and become job-ready software developers.

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