How to check if a document is ready in JavaScript?
Following is the code to check if a document is ready in JavaScript −
Example
Live Demo
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
<style>
body {
font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}
.result {
font-size: 18px;
font-weight: 500;
color: blueviolet;
}
</style>
</head>
<body>
<h1>Check if a document is ready</h1>
<div class="result"></div>
<button class="Btn">Check</button>
<h3>Click on the above button to see document state</h3>
<script>
let resEle = document.querySelector(".result");
let BtnEle = document.querySelector(".Btn");
resEle.innerHTML = document.readyState + "<br><br>";
BtnEle.addEventListener("click", () => {
if (document.readyState === "complete") {
resEle.innerHTML = "The page has finished loading completely";
} else {
resEle.innerHTML = "The page is still loading";
}
});
</script>
</body>
</html>Output
On clicking the ‘Check’ button −
Published on 17-Jul-2020 07:42:49
