我有一个相对简单的问题,试图将内联脚本添加到React组件。到目前为止我有:

'use strict';

import '../../styles/pages/people.scss';

import React, { Component } from 'react';
import DocumentTitle from 'react-document-title';

import { prefix } from '../../core/util';

export default class extends Component {
    render() {
        return (
            <DocumentTitle title="People">
                <article className={[prefix('people'), prefix('people', 'index')].join(' ')}>
                    <h1 className="tk-brandon-grotesque">People</h1>
                    
                    <script src="https://use.typekit.net/foobar.js"></script>
                    <script dangerouslySetInnerHTML={{__html: 'try{Typekit.load({ async: true });}catch(e){}'}}></script>
                </article>
            </DocumentTitle>
        );
    }
};

我也试过:

<script src="https://use.typekit.net/foobar.js"></script>
<script>try{Typekit.load({ async: true });}catch(e){}</script>

这两种方法似乎都不能执行所需的脚本。我猜我错过了一件简单的事。有人能帮忙吗?

PS:忽略foobar,我有一个真正的id实际上在使用,我不想分享。


当前回答

你可以在以下链接找到最佳答案:

https://cleverbeagle.com/blog/articles/tutorial-how-to-load-third-party-scripts-dynamically-in-javascript

const loadDynamicScript = (callback) => { const existingScript = document.getElementById('scriptId'); if (!existingScript) { const script = document.createElement('script'); 脚本。SRC = 'url';//加载的第三方库的URL。 脚本。id = 'libraryName';//例如,googleMaps或stripe document.body.appendChild(脚本); 脚本。Onload = () => { If (callback) callback(); }; } if (existingScript && callback) callback(); };

其他回答

有点晚了,但我决定创建我自己的@Alex Macmillan的答案后,这是通过传递两个额外的参数;放置脚本的位置,如或和设置async为true/false,这里是:

import { useEffect } from 'react';

const useScript = (url, position, async) => {
  useEffect(() => {
    const placement = document.querySelector(position);
    const script = document.createElement('script');

    script.src = url;
    script.async = typeof async === 'undefined' ? true : async;

    placement.appendChild(script);

    return () => {
      placement.removeChild(script);
    };
  }, [url]);
};

export default useScript;

调用它的方式与本文中接受的答案完全相同,但有两个额外的参数(再次):

// First string is your URL
// Second string can be head or body
// Third parameter is true or false.
useScript("string", "string", bool);

我看到了同样的问题,直到我发现这个包,很容易实现,我希望它能像它为我工作:)

https://github.com/gumgum/react-script-tag

import React from 'react';
import Script from '@gumgum/react-script-tag';

import './App.css';

function App() {
  return (
    <div >

      <h1> Graphs</h1>
      <div class="flourish-embed flourish-network" data-src="visualisation/8262420">
        <Script  src"your script"
        </Script>
      </div>
    </div>
  );
}

export default App;

根据Alex McMillan的解决方案,我有如下的调整。 我自己的环境:React 16.8+,下一个v9+

//添加一个名为Script的自定义组件 / / / Script.js hook

import { useEffect } from 'react'


// react-helmet don't guarantee the scripts execution order
export default function Script(props) {

  // Ruels: alwasy use effect at the top level and from React Functions
  useEffect(() => {
    const script = document.createElement('script')

    // src, async, onload
    Object.assign(script, props)

    let { parent='body' } = props

    let parentNode = document.querySelector(parent)
    parentNode.appendChild(script)

    return () => {
      parentNode.removeChild(script)
    }
  } )

  return null  // Return null is necessary for the moment.
}

//使用自定义组件,只需导入它,并将旧的小写<script>标记替换为自定义驼色大小写<script>标记就足够了。 / / index.js

import Script from "../hooks/Script";
    
<Fragment>
  {/* Google Map */}
  <div ref={el => this.el = el} className="gmap"></div>

  {/* Old html script */}
  {/*<script type="text/javascript" src="http://maps.google.com/maps/api/js"></script>*/}

  {/* new custom Script component */}
  <Script async={false} type="text/javascript" src='http://maps.google.com/maps/api/js' />
</Fragment>

我最近遇到了一个问题, 尝试了这里给出的多种解决方案,最终满足于iframe, 如果你想在特定的屏幕上集成一个js插件,Iframe似乎可以无缝地工作

<iframe id="xxx" title="xxx" width="xxx" height="xxx" frameBorder="value" allowTransparency srcDoc={` <!doctype html> <html> <head> <title>Chat bot</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width"> </head> <body style="width:100%"> <script type="text/javascript"> ...... </script> </body> </html> `} />

componentDidMount() {
  const head = document.querySelector("head");
  const script = document.createElement("script");
  script.setAttribute(
    "src",
    "https://assets.calendly.com/assets/external/widget.js"
  );
  head.appendChild(script);
}