ua-parser-js用于检测客户端信息

引入

CDN引入：

1	<script src="https://cdn.jsdelivr.net/npm/ua-parser-js@0/dist/ua-parser.min.js"></script>

NPM引入：

1 2	npm i ua-parser-js import UAParser from 'ua-parser-js'

使用

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var parser = new UAParser();
var result = parser.getResult();
console.log(result);

api

var parser = new UAParser();
var result = parser.getResult();
result.browser //{name: "Chrome", version: "66.0.3359.139", major: "66"}
result.device //{vendor: "Apple", model: "iPhone", type: "mobile"}
result.os //{name: "iOS", version: "11.0"}
result.os.version //11.0
result.engine //{name: "WebKit", version: "604.1.38"}
result.cpu

原生js判断浏览器信息

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if(!!window.ActiveXObject || "ActiveXObject" in window){
    document.body.innerHTML = '<h1 style="font-size:30px;">请使用chrome浏览器打开此页！</h1>';
}