webpack.config.js 没有设置全局变量

时间:2021-03-25 03:49:17

标签: node.js reactjs webpack laravel-mix less-loader

知道为什么这个 webpack.config.js 没有设置全局 LESS 变量:current-vehicle 定义于:/resources/scripts/theme.js

/webpack.config.js

const merge = require("webpack-merge");
const path = require("path");
const baseConfig = require("laravel-mix/setup/webpack.config");

require('dotenv').config();

/**
 * Update the output directory and chunk filenames to work as expected.
 *
 * @param {object} config - The webpack config
 *
 * @return {object} The updated webpack config
 */
const addOutputConfiguration = config => {
  const publicPath = process.env.CDN_URL + '/js/';
  return merge(config, {
    output: {
      path: path.resolve(__dirname, "public/cdn/js"),
      publicPath,
      chunkFilename: "[name].js"
    },
    module: {
      loaders: [
        {
          loader: 'less-loader',
          options: {
            modifyVars: require("./resources/scripts/theme")
          }
        },
      ],
    },
  });
};

module.exports = addOutputConfiguration(baseConfig);

这里有完整的存储库:https://github.com/tlg-265/issue-import-less.local

设置

$ git clone https://github.com/tlg-265/issue-import-less.local
$ cd issue-import-less.local
$ npm i
$ npm run watch

Then open with the browser (you do NOT need a server).

LESS 变量:current-vehicle 在此处读取:

https://github.com/tlg-265/issue-import-less.local/blob/master/resources/assets/js/components/controls/ModalWindow/ModalWindow.less#L1

当您执行:$ npm run watch 时,您会收到错误:Variable @current-vehicle is undefined,如下面的屏幕截图所示:

enter image description here

理想情况下,当您运行它时,您应该在浏览器上看到以下内容:

enter image description here

当点击链接时,你应该得到:

enter image description here

但不幸的是我还没有到达那里。

知道如何让它发挥作用吗?

提前致谢!

1 个答案:

答案 0 :(得分:1)

你的这部分配置让我震惊:

    module: {
      loaders: [ // <==== !!!!!! here
        {
          loader: 'less-loader',
          options: {
            modifyVars: require("./resources/scripts/theme")
          }
        },
      ],
    },

我记得 loaders 键是用于 Webpack 版本 1 或 2,在版本 3 之后他们强烈建议使用 rules,请将其更改为 rules 并尝试使用。不知道,可能是来自 Laravel webpack 的配置。

无论如何,在less-loader之后也请添加这个加载器:

{ 
  loader: 'text-transform-loader',
  options: {
    prependText: '@import "./resources/scripts/theme.less"',
  },
},

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