javascript - 如何在 React JS 的组件中传递 props

Question

您好，我有一个折叠包装器，默认情况下其显示状态为 true (我无法更改它)还有一个模态组件，在打开时需要显示 False。我认为将 defaultOpen 属性设置为“false”会将 Display 设置为 false。但这不起作用。我做错了什么？这是代码:

我的折叠包装:

import React, { Component } from "react";
import ChevronUp from "react-feather/dist/icons/chevron-up";
import ChevronDown from "react-feather/dist/icons/chevron-down";
import { Collapse } from "reactstrap";
import "./style.scss";

class CollapseWrapper extends Component {
  constructor(props) {
    super(props);

    this.state = {
      display:
        props.defaultOpen === undefined ? true : props.defaultOpen,
      title: this.props.title,
    };
  }

  toggleContainer = () => {
    this.setState(prevState => ({
      display: !prevState.display,
    }));
  };

  render() {
    const { display, title } = this.state;
    return (
      <div>
        <button type="button" onClick={this.toggleContainer}>
          <div className="title-container">
            {display ? (
              <ChevronUp className="chevron" />
            ) : (
              <ChevronDown className="chevron" />
            )}

            <h2>{title}</h2>
          </div>
        </button>
        <Collapse isOpen={this.state.display}>
          {this.props.children}
        </Collapse>
      </div>
    );
  }
}

export default CollapseWrapper;

我的模态:

import React from "react";
import { Modal } from "reactstrap";
import CollapseWrapper from "./CollapseWrapper";

class Mymodal extends Component {
  constructor(props) {
    super(props);
    this.state = {};
  }

  render() {
    const { isOpen } = this.props;
    return (
      <Modal size="xxl" isOpen={isOpen} toggle={this.close}>
        <CollapseWrapper defaultOpen="false" title="More détails">
          Some content...
        </CollapseWrapper>
      </Modal>
    );
  }
}

export default Mymodal;

Answer 1

您应该在大括号 {} 内传递 bool 值，而不是在字符串中传递。正确 defaultOpen={false}错误的 defaultOpen="false"

<CollapseWrapper defaultOpen={false} title="More détails">
   Some content...
</CollapseWrapper>