Question

所以这是我将要使用Webpack的第一个项目，到目前为止，我已经通过对文档中的代码进行故障排除和复制来扩展了这一范围在我项目的英雄部分，图像是通过JavaScript动态添加的。这是代码

// Import multiple images

function importAll(r) {
    let images = {};
    r.keys().map(item => { images[item.replace('./', '')] = r(item) })
    return images;
}

const images = importAll(require.context("./img/hero", true, /\.(png|jpe?g|svg)$/));

它放置在index.html中，因此在hero-js文件中是必需的，

const images = require('./index');

并使用以下代码实现：


// Set dynamic background
function setBg() {
    console.log(' I am Working')
    let today = new Date()
    // let today = new Date(),
    hour = today.getHours();


    // Randomize bg
    // morning
    let morningArray = ['sunset-view-of-mountains-733100.jpg', 'purple-petal-flower-surrounded-by-green-plants-during-66288.jpg', 'time-lapse-photography-of-waterfalls-during-sunset-210186.jpg', 'two-cargo-ships-sailing-near-city-2144905.jpg'];
    let morningBg = morningArray[Math.floor(Math.random() * morningArray.length)];
    let morningPath = '../src/img/hero/';
    let morning = morningPath + morningBg
    console.log(morning)
    // afternoon
    let afternoonArray = ['empty-dining-tables-and-chairs-1579739.jpg', 'brown-and-green-mountain-view-photo-842711.jpg', 'photo-of-keyboard-near-mouse-3184460.jpg', 'america-arid-bushes-california-221148.jpg'];
    let afternoonBg = afternoonArray[Math.floor(Math.random() * afternoonArray.length)];
    let afternoonPath = '../src/img/hero/';
    let afternoon = afternoonPath + afternoonBg;

    // evening
    let eveningArray = ['twisted-building-during-nighttime-1470405  s.jpg', 'beautiful-beauty-blue-bright-414612.jpg', 'landscape-photo-of-mountain-with-polar-lights-1434608.jpg', 'photo-of-toronto-cityscape-at-night-2478248.jpg'];
    let eveningBg = eveningArray[Math.floor(Math.random() * eveningArray.length)];
    let eveningPath = './src/img/hero/';
    let evening = eveningPath + eveningBg;


    // Show bg
    //morning
    if (hour < 12) {
        hero.style.background = `url(${morning}) no-repeat center center / cover`;
        greetingJs.textContent = 'Hi Good Morning,'

        // afternoon

    } else if (hour < 18) {
        hero.style.background = `url(${afternoon}) no-repeat center center / cover`;
        greetingJs.textContent = 'Hi Good Afternoon,'
    }

    // evening and night
    else {
        hero.style.background = `url(${evening}) no-repeat center center / cover`;
        greetingJs.textContent = 'Hi Good Evening,'
    }
}

在Netlify上，这些图像不会出现，只有后备的bg颜色可以节省一天的时间。

无休止的故障排除后，我意识到chrome开发工具的网络标签中发生了一些有趣的事情：

该图片似乎是用错误的格式请求的，并且指向与nav.js无关的图片（其代码在index.js和dynamicHero.js中）。另外：

该错误似乎是由nav.js文件中的一行引起的，否则该文件可以正常工作。另外，我注意到有时甚至不要求图像，因此未检测到错误。我也对netlify构建设置进行了一些更改（然后它开始要求它）最初，基本目录为空而发布目录只是dist。

最后，我的项目结构如下而我的webpack配置是：

//require plugins
const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
// const MiniCssExtractPlugin = require('mini-css-extract-plugin');
// const { CleanWebpackPlugin } = require('clean-webpack-plugin');

// modules
module.exports = {
    mode: 'development',
    entry: {
        app: './src/index.js',
    },
    devServer: {

    },
    module: {
        rules: [
            // babel 
            {
                test: /\.js$/,
                exclude: /node_modules/,
                use: 'babel-loader'
            },
            {
                test: /\.html$/,
                use: [
                    {
                        // load with html loader and then minimize
                        loader: 'html-loader',
                        options: {
                            attrs: ['img:src', 'link:href'],
                            minimize: true,
                            interpolate: true,
                        }
                    }
                ]
            },
            {
                test: /\.css$/,
                use: ['style-loader', 'css-loader']
            },
            {
                test: /\.(png|svg|jpg|gif)$/,
                use: [
                    {
                        loader: 'file-loader',
                        options: {
                            esModule: false,
                        },
                    }
                ],
            },
        ]
    },
    plugins: [
        /*   new CleanWebpackPlugin({
              cleanAfterEveryBuildPatterns: ['dist']
          }), */
        new HtmlWebpackPlugin({
            template: './src/index.html',
            filename: './index.html',
        }),
        /*  new MiniCssExtractPlugin({
             filename: '[name].css',
             chunkFilename: '[id].css',
             ignoreOrder: false,
         }) */
    ],
    optimization: {
        splitChunks: {
            chunks: 'all',
        },

    },
    output: {
        filename: '[name].bundle.js',
        path: path.join(__dirname, 'dist'),
        publicPath: '/'

    },
}

这是我在netlify上最新的部署预览的链接：netlify

还有一个指向我的存储库的链接，以防您想复制它：github

我在做什么错了？

Webpack网站不在Netlify上显示我动态添加的图像，但在dev-server上显示

0 个答案: