小编典典

在React组件中使用CSS模块以及由webpack构建的Typescript

reactjs

我想在用Typescript编写的React应用程序中将css-
loader与webpack的’modules’选项一起使用。这个例子是我的起点(他们使用Babel,webpack和React)。

webpack配置

var webpack=require('webpack');
var path=require('path');
var ExtractTextPlugin=require("extract-text-webpack-plugin");

module.exports={
    entry: ['./src/main.tsx'],
    output: {
        path: path.resolve(__dirname, "target"),
        publicPath: "/assets/",
        filename: 'bundle.js'
    },
    debug: true,
    devtool: 'eval-source-map',
    plugins: [
        new webpack.optimize.DedupePlugin(),
        new webpack.optimize.UglifyJsPlugin({minimize: true})
    ],
    resolve: {
        extensions: ['', '.jsx', '.ts', '.js', '.tsx', '.css', '.less']
    },
    module: {
        loaders: [
            {
                test: /\.ts$/,
                loader: 'ts-loader'
            },
            {
                test: /\.tsx$/,
                loader: 'react-hot!ts-loader'
            }, {
                test: /\.jsx$/,
                exclude: /(node_modules|bower_components)/,
                loader: "react-hot!babel-loader"
            },
            {
                test: /\.js$/,
                exclude: /(node_modules|bower_components)/,
                loader: "babel-loader"
            }, {
                test: /\.css/,
                exclude: /(node_modules|bower_components)/,
                loader: ExtractTextPlugin.extract('style-loader', 'css-loader?modules&importLoaders=1&localIdentName=[name]__[local]___[hash:base64:5]!postcss-loader')
            }
        ]
    },
    plugins: [
        new ExtractTextPlugin("styles.css", {allChunks: true})
    ],
    postcss: function() {
        return [require("postcss-cssnext")()]
    }
}

这是我想用随附的CSS文件设置样式的React组件:

import React = require('react');
import styles = require('../../../css/tree.css')

class Tree extends React.Component<{}, TreeState> {
...

    render() {
        var components = this.state.components
        return (
            <div>
                <h3 className={styles.h3} >Components</h3>
                <div id="tree" className="list-group">
                    ...
                </div>
            </div>
        )
    }
}

    export = Tree

tree.css

.h3{
    color: red;
}

说明无论我在做什么(试图改变进口语法,试图声明“要求”为TS-装载机,在这里,我总是得到:

未捕获的错误:找不到模块“ ../../../css/tree.css”

在运行时

错误TS2307:找不到模块“ ../../../css/tree.css”。

由TS编译器。发生了什么?在我看来,css-loader甚至没有发出ICSS?还是ts-loader出现错误?


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2020-07-22

共1个答案

小编典典

import对TypeScript具有特殊意义。这意味着TypeScript将尝试加载并了解正在导入的内容。正确的方法是require像您提到的那样进行定义,var而不是import

var styles = require('../../../css/tree.css')`
2020-07-22