ReactJS中的浏览器检测

问题描述：

有没有办法通过React检测IE浏览器并重定向到页面或提供任何有用的消息。我在JavaScript中找到了一些东西，但不确定如何将它与React + TypeScript一起使用。

Is there any way to detect IE browser with React and either redirect to a page or give any helpful message. I found something in JavaScript, but not sure how would I use it with React+TypeScript.

var isEdge =！isIE&& !! window.StyleMedia;

答

你在正确的轨道上可以有条件地使用它们渲染jsx或帮助路由......

You are on the right track you can use these to conditionally render jsx or help with routing...

我使用了以下内容并取得了巨大成功。

I have used the following with great success.

最初来自 - 如何检测Safari，Chrome，IE，Firefox和Opera浏览器？

// Opera 8.0+
const isOpera = (!!window.opr && !!opr.addons) || !!window.opera || navigator.userAgent.indexOf(' OPR/') >= 0;

// Firefox 1.0+
const isFirefox = typeof InstallTrigger !== 'undefined';

// Safari 3.0+ "[object HTMLElementConstructor]" 
const isSafari = /constructor/i.test(window.HTMLElement) || (function (p) { return p.toString() === "[object SafariRemoteNotification]"; })(!window['safari'] || (typeof safari !== 'undefined' && safari.pushNotification));

// Internet Explorer 6-11
const isIE = /*@cc_on!@*/false || !!document.documentMode;

// Edge 20+
const isEdge = !isIE && !!window.StyleMedia;

// Chrome 1 - 71
const isChrome = !!window.chrome && (!!window.chrome.webstore || !!window.chrome.runtime);

// Blink engine detection
const isBlink = (isChrome || isOpera) && !!window.CSS;

请注意，由于浏览器更改，每个人都有机会弃用。

Please be aware they each stand a chance to deprecated due to browser changes.

我在这样的反应中使用它们。

I use them in react like this.

 content(props){
    if(!isChrome){
     return (
      <Otherjsxelements/>
     )
    }
    else { 
     return (
      <Chromejsxelements/>
     )
    }
  }

然后通过调用主组件中的{this.Content（）}来呈现不同的浏览器特定元素。

Then by calling {this.Content()} in my main component to render the different browser specific elements.

Sudo代码可能看起来像这样......（未经测试）。

Sudo code might look something like this... (untested).

import React from 'react';

const isChrome = !!window.chrome && (!!window.chrome.webstore || !!window.chrome.runtime);

export default class Test extends React.Component {

  content(){
    if(isChrome){
        return (
            <div>Chrome</div>
        )
    } else {
        return (
            <div>Not Chrome</div>
        )
    }
  }

    render() {
        return (
            <div>Content to be seen on all browsers</div>
            {this.content()}
        )
    }
}

ReactJS中的浏览器检测

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