Name Field Validations in JavaScript, JavaScript Name Field Validations with Example

<html>
	<head>
    	<title>Javascript Name Field Validations</title>
    </head>
    <body>
	
		<script type="text/javascript">
			function validateForm()
			{
			var x=document.forms["myForm"]["fname"].value;
			if (x==null || x=="")
			  {
			  alert("Please enter first name.");
			  return false;
			  }
			 var y=document.forms["myForm"]["lname"].value;
			 if(y==null || y=="")
			 {
			 alert("Please enter last name."); 
			 }
			}
		</script>

<form name="myForm" action="" onSubmit="return validateForm()" method="post">
			<label class="lable">First Name</label>
			<input type="text" class="cus_form" name="fname" /><br>
			<label class="lable">Last Name</label>
			<input type="text" class="cus_form" name="lname" /><br>
			<input type="submit" class="cus_btn" value="Submit">
		</form>
        
    </body>
</html>

Output :

Topic : Name Field Validations