I don't really understand a lot of html and I'm following a tutorial atm... I'm following the tutorial one to one and this 'defer>' next to my script source keeps throwing an error and I don't understand why. please help!
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="X-UA-Compatible" content="ie=edge" />
<title>Understanding TypeScript</title>
<script> src = "app.js" defer></script>
</head>
<body>
<input type="number" id="num1" placeholder="Number 1"/>
<input type="number" id="num2" placeholder="Number 2"/>
<button>Add!</button>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="X-UA-Compatible" content="ie=edge" />
<title>Understanding TypeScript</title>
<script> src = "app.js" defer></script>
</head>
<body>
<input type="number" id="num1" placeholder="Number 1"/>
<input type="number" id="num2" placeholder="Number 2"/>
<button>Add!</button>
</body>
</html>
