just asking when I tried using this code
let countEl = document.getElementById('count-el');
console.log(countEl) inside my html file the result in console.log is showing this result <h2 id="count-el">0</h2> However when I tried to create a file for javascript I'm getting this result null can you tell me why is that happened when using external file? cause I want to get the result just like on the internal js
let countEl = document.getElementById('count-el');
console.log(countEl)<!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">
<title>Document</title>
<link rel="stylesheet" href="style.css">
<script src="function.js"></script>
</head>
<body>
<h2 id="count-el">0</h2>
<button class="increment" onclick="increment()">INCREMENT</button>
</body>
</html>