JSFiddle - React, Tailwind, and code Playground

HTML

<!doctype html>
<html>
	<head>
		<meta charset='utf-8'>
	</head>
	<body>
		<form id ='first'>
			Имя:<input type = 'text' id='name'><br/>
			Кол-во пончиков:<input type='text' id='donuts'><br/>
			Минут:<input type='text' id='minutes'><br/>
			Подитог:<input type='text' id='poditog'><br/>
			Налог:<input type='text' id='tax'><br/>
			Итог:<input type='text' id='itog'><br/>
			<input type='button' value='Заказать'>
		</form>			
	</body>
</html>

JavaScript

var name = document.getElementById('name');
				name.setAttribute('value', 'Alex');
			
			var donuts =  document.getElementById('donuts');
				donuts.setAttribute('value', '3');