在反应中使用css模块如何将className作为道具传递给组件 [英] using css modules in react how can I pass a className as a prop to a component

问题描述

如果我有一个react组件，并且想传递一个className，我该如何使用CSS模块做到这一点.它目前仅提供className，而不提供我生成的哈希生成的CSS模块名称.< div className = {styles.tile +''+ styles.blue}>

这是我的 Tile.js 组件

  import'react'中的React，{组件};从'./Tile.css'导入样式；Tile类扩展了Component {使成为() {返回 (< div className = {styles.tile +''+ this.props.color}>{this.props.children}</div>);}};导出默认图块； 

Tile.css

  @value颜色:"../../styles/colors.css";从颜色中取值蓝色，黑色，红色；.瓦 {职位:相对宽度:100％;底部填充:100％;}.黑色的 {背景颜色:黑色；}.蓝色的 {背景颜色:蓝色；}.红色的 {背景颜色:红色；} 

因此，如您所见，我按照以下步骤在作者图块"中初始化了这个Tile包装器组件，但是我想将一个颜色道具传递给该组件:

AuthorTile.js

 返回(<瓷砖方向=蓝色">< p> {this.props.title}</p>< img src = {this.props.image}/></Tile>); 

解决方案

来自文档:

避免使用多个CSS模块来描述单个元素. https://github.com/gajus/react-css-modules#multiple-css-modules

  @value颜色:"../../styles/colors.css";从颜色中取值蓝色，黑色，红色；.瓦 {职位:相对宽度:100％;底部填充:100％;}.黑色的 {组成:瓷砖；背景颜色:黑色；}.蓝色的 {组成:瓷砖；背景颜色:蓝色；}.红色的 {组成:瓷砖；背景颜色:红色；} 

然后< div className = {styles [this.props.color]} 应该可以完成工作，例如:

  render:function(){//ES2015const className = styles [this.props.color];//ES5var className ='';如果(this.props.color ==='黑色'){className = styles.black;}返回 (< div className = {className}>{this.props.children}</div>} 

If I have a react component and I want to pass in a className, how do I do this with CSS Modules. It currently just gives the className but not the hash generated css module name which I would get for <div className={styles.tile + ' ' + styles.blue}>

Here is my Tile.js component

import React, { Component } from 'react';

import styles from './Tile.css';

class Tile extends Component {

  render() {

    return (
      <div className={styles.tile + ' ' + this.props.color}>
        {this.props.children}
      </div>
    );
  }
};

export default Tile;

Tile.css

@value colors: "../../styles/colors.css";
@value blue, black, red from colors;

.tile {
    position: relative;
    width: 100%;
    padding-bottom: 100%;
}

.black {
  background-color: black;
}

.blue {
  background-color: blue;
}

.red {
  background-color: red;
}

So as you can see I initialize this Tile wrapper component as follows in my Author Tile, but I want to pass a color prop into the component:

AuthorTile.js

return (
  <Tile orientation='blue'>
   <p>{this.props.title}</p>
   <img src={this.props.image} />
  </Tile>
);

解决方案

From the docs:

Avoid using multiple CSS Modules to describe a single element. https://github.com/gajus/react-css-modules#multiple-css-modules

@value colors: "../../styles/colors.css";
@value blue, black, red from colors;

.tile {
    position: relative;
    width: 100%;
    padding-bottom: 100%;
}

.black {
    composes: tile;
    background-color: black;
}

.blue {
    composes: tile;
    background-color: blue;
}

.red {
    composes: tile;
    background-color: red;
}

Then <div className={styles[this.props.color]} should do the job, e.g:

render: function(){
  // ES2015
  const className = styles[this.props.color];

  // ES5
  var className = '';

  if (this.props.color === 'black') {
    className = styles.black;
  }

  return (
    <div className={className}>
      {this.props.children}
    </div>
}

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