Form Validation in Javascript
Prerequisites
Lecture – The Document Object Model and the basic Javascript lectures Lecture – Basics – Javascript variables and scope and Lecture – Basics – Javascript Arrays
Other lectures on Form Validation at Lecture – Debugging Form Validation in Javascript and Lecture – Basics – Functions and Form Validation
Summary
Topics covered:
1. Creating forms using Javascript
2. Form validation using Javascript
3. How HTML5 acts with certain browsers
Video
http://online1.daytonastate.edu/player2.php?id=c3008b2c6f5370b744850a98a95b73ad
Reference Materials
<!DOCTYPE html> <html> <head> <title>HTML 5 Form</title> <link rel="stylesheet" type="text/css" href="/styles.css"> <script> function validateForm() { var fname = document.forms["myForm"]["name"].value; return validateNotBlank(fname, "Name"); } function validateNotBlank(value, label) { if (value==null || value=="") { alert("Please enter a value for " + label); return false; } return true; } </script> </head> <body> <form name="myForm" onsubmit="return validateForm()" action="HTMLForm.html" > <p> <label>Enter Name (Javascript): <input type="text" name="name"></label><br/> <label>Color(HTML5): <input type="color" /></label><br/> <label>Date HTML5): <input type="date" /></label><br/> <label>E-Mail(HTML5): <input type="email" placeholder="[email protected]" /></label><br/> <label>Number(HTML5): <input type="number" min="0" max="10" /></label><br/> <label>Range(HTML5): <input type="range" min="0" max="10" value="5" /></label><br/> </p> <input type="submit" value="Submit" /> </form> </body> </html> |
Additional Information
This article has everything on HTML 5 for forms validation – http://diveintohtml5.info/forms.html