JavaScript Array of checkboxes
In this Tutorial we want to describe you a code that help you in
understanding JavaScript Array of checkboxes. For this we are using JavaScript
as Script language. In this example we make a HTML form that create two Radio
Button., three Check Boxes. and two Radio Button. The validate function is used
to validate the form Online Survey. The function validate( ) validates the
form by if conditional operator. The if condition return you true only
when any one of the radio button, check box is selected. In case the user do not
select the radio button, check box, the submit button invoke the validate
function and show you an alert message.
Buildingcheckboxes.html
<html>
<head>
<title>JavaScript Checkboxes</title>
<script type="text/javascript">
function validate(form) {
if (!document.form1.sex[0].checked && !document.form1.sex[1].checked){
alert("Please Select Sex"); return false;}
var total=""
for(var i=0; i < document.form1.scripts.length; i++){
if(document.form1.scripts[i].checked)
total +=document.form1.scripts[i].value + "\n"
}
if(total==""){
alert("Please select scripts")
}
else
alert ("Checkboxes you have selected are: "+"\n"+total)
return false;
} </script>
</head>
<body>
<table border='0' width='50%' cellspacing='0' cellpadding='0' >
<form name=form1 method=post onsubmit='return validate(this)'>
<tr><th colspan="3" align="center">Online Survey<br><br></th>
</tr>
<tr>
<td><b>Sex</b></td>
<td> </td>
<td>
<input type=radio name=sex value='male'>Male <br>
<input type=radio name=sex value='female'>Female<br><br>
</td>
</tr>
<tr>
<td><b>Skills set</b></td>
<td> </td>
<td>
<input type=checkbox name=scripts value='Java'>Java <br>
<input type=checkbox name=scripts value='Jsp'>Jsp<br>
<input type=checkbox name=scripts value='Servlets'>Servlets<br>
<br>
</td>
</tr>
<tr><td align=center >
<input type=submit value=Submit>
<input type=reset value=Reset></td></tr>
</form>
</table>
</body>
</html>
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Output of the program
Download source code
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