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Introduction
Types of Javascript
JS Arithmetic
JS Functions
JS Conditional Statments
JS Flow Control and Loops
JS Validations
Name Field
Email Field
Numeric Field/Mobile Number
Dropdown Field
Radio Button
Check Box
Popup Boxes/Dialog Box
Code
<script> function validateForm() { if(document.myform.gen[0].checked==false && document.myform.gen[1].checked==false ) { alert("Please Select The Gender"); document.myform.gen[0].focus(); return false; } else if(document.myform.gen[0].checked==true ) { var gender=document.myform.gen[0].value; document.write("Selected Gender is:- "+gender+"<br/>"); } else { var gender=document.myform.gen[1].value; document.write("Your Gender is:- "+gender+"<br/>"); } } </script> <form name="myform" onsubmit="return validateForm()" method="post"> <input type="radio" name="gen" id="gen" value="Male"/> Male <input type="radio" name="gen" id="gen" value="Female"/> Female <input type="submit" value="Submit"> </form>
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Result
