javascript - 如何动态显示模态中出现的内容

Question

如果我在 <Modal> 之间写入，则单击相应按钮后，所选食物的类型会成功显示在模态中。

<p>{this.state.cTaco}</p>
<p>{this.state.bTaco}</p>
<p>{this.state.cBurrito}</p>

但我不想将其逐一写出，而是希望它使用某种映射或循环动态显示。

使用我当前的代码，它会在模态框上显示对象中所有项目的名称，而不是实际的食物名称。

cTacoClicked

cTaco

bTacoClicked

bTaco

cBurritoSelected

cBurrito

它应该显示(同样，如果我将状态 1 乘 1 地写出来，它确实会像这样显示):

Chicken Taco

Beef Taco

Chicken Burrito

我怎样才能正确地使用循环来动态地实现这一点。

这是我的代码:

import React, { Component } from 'react';
import { connect } from 'react-redux';
import Modal from 'react-modal';

import Aux from '../../../../hoc/Aux';
import FoodButton from '../FoodButtons/FoodButton';
import CheckoutButton from '../CheckoutButton/CheckoutButton';
import axios from '../../../../axios-foodChosen';

import { CLOSE_MODAL, OPEN_MODAL } from "../../../../store/action/NoNameAction";

class TacoTypes extends Component {
    state = {
        items: {
            cTacoClicked: false,
            cTaco: '',

            bTacoClicked: false,
            bTaco: '',

            cBurritoSelected: false,
            cBurrito: ''
        }
    }

    componentWillMount() {
        // for modal
        Modal.setAppElement('body');
    }

    chickenTaco() {
        // modal
        const cTacoSelected = "Chicken Taco";
        this.setState({cTacClicked: true, cTaco: cTacoSelected});
    }

    beefTaco() {
        // modal
        const bTacoSelected = "Beef Taco";
        this.setState({bTacoClicked: true, bTaco: bTacoSelected});
    }

    chickenBurrito() {
        // modal
        const cBurritoSelected = "Chicken Burrito";
        this.setState({cBurritoSelected: true, cBurrito: cBurritoSelected });
    }

    render() {
        return (
            <Aux>
                <FoodButton clicked={() => this.chickenTaco()} label={"Chicken Taco"}/>
                <FoodButton clicked={() => this.beefTaco()} label={"Beef Taco"}/>
                <FoodButton clicked={() => this.chickenBurrito()} label={"Chicken Burrito"}/>

                <CheckoutButton clicked={() => this.props.openModalRedux()}/>

                <Modal isOpen={this.props.isOpen}>
                    <p>
                        {
                            Object.keys(this.state.items).map(i => (
                                <p>{i}</p>
                            ))
                        }
                    </p>
                    <button onClick={() => this.props.closeModalRedux()}>Close</button>
                </Modal>
            </Aux>
        );
    }
}

const mapStateToProps = state => {
    return {
        // props for modal
        isOpen: state.global.isModalOpen,
    }
};

const mapDispatchToProps = dispatch => {
    return {
        // Modal handlers
        openModalRedux: () => dispatch({type: OPEN_MODAL}),
        closeModalRedux: () => dispatch({type: CLOSE_MODAL})
    }
};

export default connect(mapStateToProps, mapDispatchToProps)(TacoTypes);

Answer 1

您目前只是在使用items 对象的键。您想要获取键在 state 对象中的值。

<Modal isOpen={this.props.isOpen}>
  <p>
    {Object.keys(this.state.items).map(key => (
      <p key={key}>{this.state[key]}</p>
    ))}
  </p>
  <button onClick={() => this.props.closeModalRedux()}>Close</button>
</Modal>