在React中使用map()传递其他参数

const myArray = [1, 2, 3, 4, 5];

const myComponent = () => {
  const additionalParam = "additional";
  
  return (
    <div>
      {myArray.map((item) => myCallback(item, additionalParam))}
    </div>
  );
}

const myCallback = (item, additionalParam) => {
  // 在这里可以使用item和additionalParam进行个性化处理
  return <span>{item} - {additionalParam}</span>;
}

const myArray = [1, 2, 3, 4, 5];

class MyComponent extends React.Component {
  constructor(props) {
    super(props);
    this.additionalParam = "additional";
  }
  
  myCallback(item) {
    // 在这里可以使用item和this.additionalParam进行个性化处理
    return <span>{item} - {this.additionalParam}</span>;
  }
  
  render() {
    return (
      <div>
        {myArray.map(this.myCallback.bind(this))}
      </div>
    );
  }
}