将外部JS文件导入React组件

class MyComponent extends React.Component {
  componentDidMount() {
    const script = document.createElement("script");
    script.src = "path/to/external.js";
    document.body.appendChild(script);
  }

  render() {
    return <div>My Component</div>;
  }
}

import externalScript from "path/to/external.js";

class MyComponent extends React.Component {
  componentDidMount() {
    // 使用导入的外部JS文件中的函数、变量或类
    externalScript.someFunction();
  }

  render() {
    return <div>My Component</div>;
  }
}

const externalScript = require("path/to/external.js");

class MyComponent extends React.Component {
  componentDidMount() {
    // 使用导入的外部JS文件中的函数、变量或类
    externalScript.someFunction();
  }

  render() {
    return <div>My Component</div>;
  }
}