Javascript Password Validation

JavaScript Password Validation

Here we see that how to validate any password field. Like password field can be blank and length of password is minimum 8 characters.

Example

<!DOCTYPE html>  
<html>  
<head>  
<script>  
functionpass_validation()  
{    
var password=document.myform.password.value;    
if (password==null || password=="")  
{    
alert("password can't be blank");    
return false;    
}  
else if(password.length<8)  
{    
alert("Password must be at least 8 characters long.");    
return false;    
  }    
}    
</script>  
</head>  
<body>  
<form name="myform" method="post" action="register.php" onsubmit="return pass_validation()" >  
Password: <input type="password" name="password">  
<input type="submit" value="submit">  
</form>  
</body>  
</html>
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