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calcul bandwith #2501

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102 changes: 97 additions & 5 deletions index.html
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Original file line number Diff line number Diff line change
@@ -1,12 +1,104 @@
<!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">
<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>Static Template</title>
</head>
<body>
<h1>This is a static template, there is no bundler or bundling involved!</h1>
<style>
body {
background: snow;
}
.card {
background-color: #dbf1d7;
width: 400px;
padding: 20px;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
box-shadow: 0 3px 10px rgb(0 0 0);
}
.result {
font-size: 5em;
line-height: 1.3em;
text-align: center;
}
.message {
text-align: center;
font-weight: bold;
color: #221f1f;
font-size: 4.5vh;
line-height: 6vh;
min-height: 6vh;
}
</style>

<div class="card">
<div class="message" id="progress">
Calculating Speed ...
</div>
<div class="result" id="result">
...
</div>
</div>

<script type="text/javascript">
if (window.addEventListener) {
window.addEventListener("load", InitiateSpeedDetection, false);
} else if (window.attachEvent) {
window.attachEvent("onload", InitiateSpeedDetection);
}

var imageAddr =
"https://4k-uhd.nl/wp-content/uploads/2018/08/4K-3840x2160-Wallpaper-Uitzicht-5.jpg";
var downloadSize = 5739426; //bytes

function ShowProgressMessage(msg) {
var oProgress = document.getElementById("progress");
if (oProgress) {
oProgress.innerHTML = msg;
}
}

function showResultMessage(msg) {
document.getElementById("result").innerHTML = msg;
document.getElementById("progress").innerHTML =
"Your Internet Speed is";
}

function InitiateSpeedDetection() {
ShowProgressMessage("Calculating Speed ...");
window.setTimeout(MeasureConnectionSpeed, 1);
}

function MeasureConnectionSpeed() {
var startTime, endTime;
var download = new Image();
download.onload = function () {
endTime = new Date().getTime();
showResults();
};

download.onerror = function (err, msg) {
ShowProgressMessage("Invalid image, or error downloading");
};

startTime = new Date().getTime();
var cacheBuster = "?nnn=" + startTime;
download.src = imageAddr + cacheBuster;

function showResults() {
var duration = (endTime - startTime) / 1000;
var bitsLoaded = downloadSize * 8;
var speedBps = (bitsLoaded / duration).toFixed(2);
var speedKbps = (speedBps / 1024).toFixed(2);
var speedMbps = (speedKbps / 1024).toFixed(2);
showResultMessage(speedMbps + " Mbps");
}
}
</script>
</body>
</html>
</html>