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js怎么生成uuid?

js怎么生成uuid?

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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>BFW NEW PAGE</title>

<script type="text/javascript">

alert(generateUUID());

function generateUUID() {
var d = new Date().getTime();
if (window.performance && typeof window.performance.now === "function") {
d += performance.now(); //use high-precision timer if available
}
var uuid = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {
var r = (d + Math.random() * 16) % 16 | 0;
d = Math.floor(d / 16);
return (c == 'x' ? r: (r & 0x3 | 0x8)).toString(16);
});
return uuid;
}
</script>
<style>
</style>
</head>
<body>

</body>
</html>


by ppzhuzhu
我知道答案,我要回答