我有两个问题。
1) CSS Loader和Style Loader是两个webpack Loader。我无法理解两者之间的区别。为什么我必须使用两个装载机,当他们都做同样的工作?
2)这是什么?less和.useable.css在上面的自述文中提到。md文件?
我有两个问题。
1) CSS Loader和Style Loader是两个webpack Loader。我无法理解两者之间的区别。为什么我必须使用两个装载机,当他们都做同样的工作?
2)这是什么?less和.useable.css在上面的自述文中提到。md文件?
Webpack文档声明了这个输出。publicPath是:
输出。路径从JavaScript的视图。
你能详细说明一下这到底是什么意思吗?
我使用输出。路径和输出。文件名指定Webpack应该在哪里输出结果,但我不确定在输出中放什么。publicPath,以及是否需要。
module.exports = {
output: {
path: path.resolve("./examples/dist"),
filename: "app.js",
publicPath: "What should I put here?"
}
}
我习惯于在布局文件中放置一个特殊的视图,如ListActivity文档中所述,在没有数据时显示。这个视图的id为“android:id/empty”。
<TextView
android:id="@android:id/empty"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/no_data" />
我想知道这如何能与新的RecyclerView?
Webpack 5不再对节点核心模块进行自动填充。 请问怎么修?
break CHANGE:默认情况下,webpack < 5用于为node.js核心模块包含polyfills。 现在情况已经不同了。验证你是否需要这个模块,并为它配置一个填充。
我读过几页关于Webpack中的热模块替换的文章。 甚至还有一个使用它的示例应用程序。
我读了所有这些,但还是不明白。
我能用它做什么?
它是否应该只用于开发而不用于生产? 它是否像LiveReload,但你必须自己管理它? WebpackDevServer是否以某种方式与liverload集成?
假设我想在将CSS(一个样式表)和JS模块保存到磁盘时更新它们,而不需要重新加载页面,也不需要使用liverload等插件。这是热模块更换可以帮助我吗?我需要做什么样的工作,HMR已经提供了什么?
我正在使用create-react-app。我试图从我的src/components内部的文件中调用我的公共文件夹中的图像。我收到这个错误信息。
./src/components/website_index.js模块未找到:你试图 import ../../public/images/logo/WC-BlackonWhite.jpg 在项目src/目录之外。国外的相对进口 Src /不支持。您可以将它移动到src/,或者添加一个 从项目的node_modules/到它的符号链接。
从“../../public/images/logo_2016.png”导入logo; <img className="Header-logo" src={logo} alt=" logo" />
我读过很多东西,说你可以做一个导入的路径,但这仍然不是为我工作。任何帮助都将不胜感激。我知道有很多这样的问题,但他们都告诉我导入标志或形象,所以很明显,我在大局中遗漏了一些东西。
我使用的是Angular 2+和Angular CLI。
我如何添加字体awesome到我的项目?
我已经开始使用webpack2(准确地说,v2.3.2),在重新创建我的配置后,我一直遇到一个问题,我似乎无法解决我得到(提前为丑陋的转储道歉):
ERROR in ./src/main.js
Module not found: Error: Can't resolve 'components/DoISuportIt' in '[absolute path to my repo]/src'
resolve 'components/DoISuportIt' in '[absolute path to my repo]/src'
Parsed request is a module
using description file: [absolute path to my repo]/package.json (relative path: ./src)
Field 'browser' doesn't contain a valid alias configuration
aliased with mapping 'components': '[absolute path to my repo]/src/components' to '[absolute path to my repo]/src/components/DoISuportIt'
using description file: [absolute path to my repo]/package.json (relative path: ./src)
Field 'browser' doesn't contain a valid alias configuration
after using description file: [absolute path to my repo]/package.json (relative path: ./src)
using description file: [absolute path to my repo]/package.json (relative path: ./src/components/DoISuportIt)
as directory
[absolute path to my repo]/src/components/DoISuportIt doesn't exist
no extension
Field 'browser' doesn't contain a valid alias configuration
[absolute path to my repo]/src/components/DoISuportIt doesn't exist
.js
Field 'browser' doesn't contain a valid alias configuration
[absolute path to my repo]/src/components/DoISuportIt.js doesn't exist
.jsx
Field 'browser' doesn't contain a valid alias configuration
[absolute path to my repo]/src/components/DoISuportIt.jsx doesn't exist
[[absolute path to my repo]/src/components/DoISuportIt]
[[absolute path to my repo]/src/components/DoISuportIt]
[[absolute path to my repo]/src/components/DoISuportIt.js]
[[absolute path to my repo]/src/components/DoISuportIt.jsx]
package.json
{
"version": "1.0.0",
"main": "./src/main.js",
"scripts": {
"build": "webpack --progress --display-error-details"
},
"devDependencies": {
...
},
"dependencies": {
...
}
}
关于它所抱怨的浏览器字段,我能够找到的文档是:package-browser-field-spec。也有webpack文档,但它似乎默认开启:aliasFields: ["browser"]。我尝试在我的包中添加一个浏览器字段。Json,但这似乎没有任何好处。
webpack.config.js
import path from 'path';
const source = path.resolve(__dirname, 'src');
export default {
context: __dirname,
entry: './src/main.js',
output: {
path: path.resolve(__dirname, 'dist'),
filename: '[name].js',
},
resolve: {
alias: {
components: path.resolve(__dirname, 'src/components'),
},
extensions: ['.js', '.jsx'],
},
module: {
rules: [
{
test: /\.(js|jsx)$/,
include: source,
use: {
loader: 'babel-loader',
query: {
cacheDirectory: true,
},
},
},
{
test: /\.css$/,
include: source,
use: [
{ loader: 'style-loader' },
{
loader: 'css-loader',
query: {
importLoader: 1,
localIdentName: '[path]___[name]__[local]___[hash:base64:5]',
modules: true,
},
},
],
},
],
},
};
src / main.js
import DoISuportIt from 'components/DoISuportIt';
src /组件/ DoISuportIt / index.jsx
export default function() { ... }
为完整起见,.babelrc
{
"presets": [
"latest",
"react"
],
"plugins": [
"react-css-modules"
],
"env": {
"production": {
"compact": true,
"comments": false,
"minified": true
}
},
"sourceMaps": true
}
我做错了什么/遗漏了什么?
已经尝试过:在macOS Sierra, Xcode 8上的代码符号错误
请参阅显示错误的图像
CodeSign /Users/gururajtallur/Library/Developer/Xcode/DerivedData/Flow-bkqjkvtmvjovpyepfjeyqmjpintj/Build/Products/Debug-iphoneos/Super\ Flow\ Flip.app
cd "/Volumes/Development/Project/Top Best Games/19. Lets Flow/35/let's FLOW - source/proj.ios_mac"
export CODESIGN_ALLOCATE=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/codesign_allocate
export PATH="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin"
Signing Identity: "iPhone Distribution: New Free Games (2CHN583K4J)"
Provisioning Profile: "Super Flow Flipp AppStore"
(c6c30d2a-1025-4a23-8d12-1863ff684a05)
/usr/bin/codesign --force --sign E48B98966150110E55EAA9B149F731901A41B37F --entitlements /Users/gururajtallur/Library/Developer/Xcode/DerivedData/Flow-bkqjkvtmvjovpyepfjeyqmjpintj/Build/Intermediates/Flow.build/Debug-iphoneos/Super\ Flow\ Flip.build/Super\ Flow\ Flip.app.xcent --timestamp=none /Users/gururajtallur/Library/Developer/Xcode/DerivedData/Flow-bkqjkvtmvjovpyepfjeyqmjpintj/Build/Products/Debug-iphoneos/Super\ Flow\ Flip.app
/Users/gururajtallur/Library/Developer/Xcode/DerivedData/Flow-bkqjkvtmvjovpyepfjeyqmjpintj/Build/Products/Debug-iphoneos/Super Flow Flip.app: resource fork, Finder information, or similar detritus not allowed
Command /usr/bin/codesign failed with exit code 1
在代码签名部分,它允许我选择配置文件和证书…但还是会出错。
如何解决这个问题?
我有一个Webpack构建过程突然崩溃的问题,导致以下错误…
<s> [webpack.Progress] 10% building 0/1 entries 0/0 dependencies 0/0 modules
node:internal/crypto/hash:67
this[kHandle] = new _Hash(algorithm, xofLen);
^
Error: error:0308010C:digital envelope routines::unsupported
at new Hash (node:internal/crypto/hash:67:19)
at Object.createHash (node:crypto:130:10)
at BulkUpdateDecorator.hashFactory (/app/node_modules/webpack/lib/util/createHash.js:155:18)
at BulkUpdateDecorator.update (/app/node_modules/webpack/lib/util/createHash.js:46:50)
at OriginalSource.updateHash (/app/node_modules/webpack-sources/lib/OriginalSource.js:131:8)
at NormalModule._initBuildHash (/app/node_modules/webpack/lib/NormalModule.js:888:17)
at handleParseResult (/app/node_modules/webpack/lib/NormalModule.js:954:10)
at /app/node_modules/webpack/lib/NormalModule.js:1048:4
at processResult (/app/node_modules/webpack/lib/NormalModule.js:763:11)
at /app/node_modules/webpack/lib/NormalModule.js:827:5 {
opensslErrorStack: [ 'error:03000086:digital envelope routines::initialization error' ],
library: 'digital envelope routines',
reason: 'unsupported',
code: 'ERR_OSSL_EVP_UNSUPPORTED'
}
command terminated with exit code 1
我尝试谷歌ERR_OSSL_EVP_UNSUPPORTED webpack,几乎没有任何有用的结果,但它确实突出了使用OpenSSL提供的MD4来生成哈希的问题(显然已弃用?)
webpack.config.js代码如下:
const path = require('path');
const webpack = require('webpack');
/*
* SplitChunksPlugin is enabled by default and replaced
* deprecated CommonsChunkPlugin. It automatically identifies modules which
* should be splitted of chunk by heuristics using module duplication count and
* module category (i. e. node_modules). And splits the chunks…
*
* It is safe to remove "splitChunks" from the generated configuration
* and was added as an educational example.
*
* https://webpack.js.org/plugins/split-chunks-plugin/
*
*/
/*
* We've enabled TerserPlugin for you! This minifies your app
* in order to load faster and run less javascript.
*
* https://github.com/webpack-contrib/terser-webpack-plugin
*
*/
const TerserPlugin = require('terser-webpack-plugin');
module.exports = {
mode: 'development',
entry: './src/js/scripts.js',
output: {
path: path.resolve(__dirname, 'js'),
filename: 'scripts.js'
},
devtool: 'source-map',
plugins: [new webpack.ProgressPlugin()],
module: {
rules: []
},
optimization: {
minimizer: [new TerserPlugin()],
splitChunks: {
cacheGroups: {
vendors: {
priority: -10,
test: /[\\/]node_modules[\\/]/
}
},
chunks: 'async',
minChunks: 1,
minSize: 30000,
name: 'true'
}
}
};
我如何改变哈希算法使用的Webpack其他的东西?