How to Validate HTML Form | Learn HTML Form Validation | HTML Series Part - 11 | HTML CSS JavaScript
Автор: The Dev Edge
Загружено: 2026-02-01
Просмотров: 84
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Welcome back, everyone! In our previous video, we explored Advanced HTML Form Elements like date pickers, range sliders, and selection menus. Now, we’re moving to a critical step in web development: Form Validation.
It’s one thing to build a form, but it’s another to ensure the data you receive is accurate and complete. In this lesson, you’ll learn how to stop "junk data" and empty submissions using only HTML5. We’ll cover everything from making fields mandatory to creating complex security rules for passwords using patterns—all without writing a single line of JavaScript!
🔑 What You Will Learn:
1. Mandatory Fields: Master the required attribute to ensure users never skip important inputs.
2. User Guidance: Use autofocus and autocomplete to create a smooth, frictionless experience for your users.
3. Data Constraints: Learn to use minlength and maxlength to control the quality of text and bios.
4. Security Patterns: A deep dive into the pattern attribute (Regex) to enforce strong passwords with numbers and capital letters.
5. Smart Boundaries: Using max for dates to prevent future birthdays and step for sliders to create precise rating systems.
TimeLine
00:00:00 - Advanced HTML Form Intro
00:00:43 - required attribute
00:01:14 - autofocus attribute
00:01:39 - autocomplete attribute
00:02:12 - password validation
00:02:37 - password pattern attribute
00:03:24 - minlength attribute
00:03:45 - selected attribute
00:04:12 - max and min attributes
00:04:30 - steps attribute
00:04:48 - accept attribute
00:05:09 - gender field validation
00:05:45 - checkbox field validation
00:05:56 - Next video teaser.
By the end of this video, your forms won't just look professional—they will act professional by protecting your database from incorrect information!
Perfect for: Beginner developers looking to build secure sites and students wanting to understand the logic behind modern registration forms.
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See u in the next video. Till then keep learning, keep coding.
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