if i use script inside html it works but if i type it in an external javascript.js i get Uncaught TypeError: Cannot read properties of undefined (reading 'style'). i cannot find any information about this.(Im a begginer).
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" type="text/css" href="style.css" media=”screen” />
<script src="java.js"></script>
<title>Document</title>
</head>
<body>
<p>texte1</p>
<p>texte2</p>
<p>texte3</p>
</body>
</html>
java.js file =
document.querySelectorAll("p")[0].style.color="red";