JavaScript का उपयोग करके HTML फॉर्म सबमिट करने के लिए, हम ऑनसबमिट इवेंट होने पर डेटा को वेरिफाई करने के लिए वैलिडेट () को कॉल कर रहे हैं।
उदाहरण
HTML फ़ॉर्म सबमिट करने के लिए आप निम्न कोड चलाने का प्रयास कर सकते हैं -
<html>
<head>
<title>Form Validation</title>
<script>
// Form validation
function validate() {
if( document.myForm.Name.value == "" ) {
alert( "Please provide your name!" );
document.myForm.Name.focus() ;
return false;
}
if( document.myForm.EMail.value == "" ) {
alert( "Please provide your Email!" );
document.myForm.EMail.focus() ;
return false;
}
if( document.myForm.Zip.value == "" ||
isNaN( document.myForm.Zip.value ) ||
document.myForm.Zip.value.length != 5 ) {
alert( "Please provide a zip in the format #####." );
document.myForm.Zip.focus() ;
return false;
}
if( document.myForm.Country.value == "-1" ) {
alert( "Please provide your country!" );
return false;
}
return( true );
}
</script>
</head>
<body>
<form action = "/cgi-bin/test.cgi" name = "myForm" onsubmit = "return(validate());">
<table cellspacing = "2" cellpadding = "2" border = "1">
<tr>
<td align = "right">Name</td>
<td><input type = "text" name = "Name" /></td>
</tr>
<tr>
<td align = "right">EMail</td>
<td><input type = "text" name = "EMail" /></td>
</tr>
<tr>
<td align = "right">Zip Code</td>
<td><input type = "text" name = "Zip" /></td>
</tr>
<tr>
<td align = "right">Country</td>
<td>
<select name = "Country">
<option value = "-1" selected>[choose yours]</option>
<option value = "1">Canada</option>
<option value = "2">Sri Lanka</option>
<option value = "3">Mexico</option>
</select>
</td>
</tr>
<tr>
<td align = "right"></td>
<td><input type = "submit" value = "Submit" /></td>
</tr>
</table>
</form>
</body>
</html>