JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html> 
<html> 
<head> 
<script type="text/javascript">
function formresponse() {
	var m = document.forms["form1"]["meal"].value;
	var d = document.forms["form1"]["drink"].value;
	if (m==null || m=="")
	   {
		alert("餐點不可為空白!");
		return false;
	   }
	else if (d==null || d=="")
	   {
		alert("飲料不可為空白!");
		return false;
	   }
	else
	   {
		var MySubmit = "https://docs.google.com/forms/d/1iIyc3lQ5Rg3lptEomwclJwawfhUF3AFLKgpBdPHrPAs/formResponse?entry.1105876683=" + m + "&entry.720345023=" + d + "&submit=Submit";
		var NewOpen = window.open(MySubmit);
	   }
}
</script>
</head>
<body>
	<form name="form1" action="javascript:formresponse();">
		便當: <input type="text" name="meal"><br />
		飲料: <input type="text" name="drink"><br />
		<input type="submit" value="Submit">
	</form>
</body>
</html>