[英]React Component not displaying different text / information despite being given unique objects as passed props
我目前正在创建一个渐进式 web 应用程序,其中包含 React、HTML、JS 和 CSS 用于学习目的,并且遇到了一个问题,尽管我的ExercisePanel
不同对象显示了相同的信息,但它们显示了相同的信息。 ExercisePanel
是一个风格化的按钮,显示图像和练习名称,并随着不同的对象准确更新。 问题源于我为显示信息而制作的自定义 Modal,因为它始终显示App.js
文件中列出的第一个组件的信息。 为了可读性,我还减少了一些字符串。 下面的文件是我认为导致问题的原因,但是我一直无法找出原因。 如果代码混乱,我很抱歉,我是这些工具的初学者。 (顺序是 App.js 然后是 ExercisePanel.js 然后是 Modal.jsx)
// Import React and Component
import React, { Component } from 'react';
// Import CSS from App.css
import './App.css';
import Exercise from './js/classes/Exercise.js';
// Import the Today component to be used below
import ExercisePanel from './Components/ExercisePanel.js'
class App extends Component {
render() {
var test = new Exercise("Curl Ups", "10-30", "30 - 90", "A curl up (or sit up) ...", "Medium", "https://img.icons8.com/ios-glyphs/96/000000/sit-ups.png");
var test2 = new Exercise("TEST2", "ur", "2", "sda", "sad", "");
return (
<div className="">
<div className="topheader">
<header className="container">
<nav className="navbar">
<div className="navbar-brand">
<span className="navbar-item"><font class="topheader">Let's Move!</font></span>
</div>
</nav>
</header>
</div>
<section className="results--section">
<div className="container">
<h1>Let's Move is a Website ...</h1>
</div>
<div className="results--section__inner">
<ExercisePanel exercise={test}/>
<ExercisePanel exercise={test2}/>
</div>
</section>
</div>
);
}
}
export default App;
import React from 'react';
import ExerciseButton from './ExerciseButton';
import Modal from './Modal'
let ExercisePanel = (props) => {
return (
<div>
<ExerciseButton image={props.exercise.image} id={props.exercise.name} onClick={handleClick}>{props.exercise.name}</ExerciseButton>
<Modal desc={props.exercise.desc} clickEvent={handleClick} cal={props.exercise.calories} time={props.exercise.estTime} name={props.exercise.name} diff={props.exercise.difficulty}/>
</div>
);
}
function handleClick() {
document.querySelector('.modal').classList.toggle('modal--hidden');
}
export default ExercisePanel;
import React from 'react';
import "./ModalStyle.css"
var Modal = ({name, desc, cal, time, diff, clickEvent}) => {
return (
<div className="modal modal--hidden">
<div style={{backgroundColor: "#beb", padding: "2rem 4rem", maxWidth: "50%", borderRadius: "10px"}}>
<div className="close-button">
<button style={{border: "none", background: "none", cursor: "pointer"}} onClick={clickEvent}>X</button>
</div>
<div className="modal--header">
<span style={{fontWeight: "bold"}}>{name}</span>
</div>
<p>
{desc}
</p>
<div>
<img style={{verticalAlign: "middle"}} src="https://img.icons8.com/ios-filled/50/000000/fire-element.png" alt="calorieImg"/>
<span style={{fontSize: "1.5rem", verticalAlign: "middle"}}>{"Calories: " + cal}</span>
</div>
<div>
<img style={{verticalAlign: "middle"}} src="https://img.icons8.com/pastel-glyph/50/000000/clock.png" alt="clockImg"/>
<span style={{fontSize: "1.5rem", verticalAlign: "middle"}}>{"Recommended Time: " + time}</span>
</div>
<div>
<img style={{verticalAlign: "middle"}} src="https://img.icons8.com/android/40/000000/flex-biceps.png" alt="difficultyImg"/>
<span style={{fontSize: "1.5rem", verticalAlign: "middle"}}>{"Difficulty: " + diff}</span>
</div>
<div className="modal--infotext">
<span>*Values given by estimated calories were from a moderately intense workout for a healthy individual.</span>
</div>
</div>
</div>
);
}
export default Modal;
我怀疑这是因为当您单击按钮时,它会执行document.querySelector('.modal').classList.toggle('modal--hidden');
这会切换所有模态上的modal--hidden
的 class,因此无论您单击哪个按钮,两个模态都会打开,您只会看到最上面的那个。
您可能希望向您的Modal
组件添加一个open
道具,并使用该道具有条件地将modal--hidden
class 添加到根模态div
。
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