浏览器检查块代码

<!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">
    <title>Document</title>
</head>

<body>
    <script>
        let str = navigator.userAgent.toLowerCase();
        console.log(str);
        if (str.search("firefox") >= 0) {
            alert("当前浏览器是火狐。");
        } else if (str.search("trident") >= 0) {
            alert("当前浏览器是IE。")
        } else if (str.search("safari") >= 0) {
            if (str.search("chrome") >= 0) {
                alert("当前浏览器是谷歌。")
            } else if (str.search("opr") >= 0) {
                alert("当前浏览器是欧朋。")
            } else {
                alert("当前浏览器是苹果。")
            }
        } else {
            alert("其他浏览器。")
        }
    </script>
</body>

</html>

  

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转载自www.cnblogs.com/smuwgeg/p/9752178.html
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