①
const VueLoaderPlugin = require('vue-loader/lib/plugin');
Cannot find module 'vue-loader/lib/plugin'
从16.0.0版本开始引用这种方法会报错,因为已经放弃了上述的引入方式,改以解构引入方式引入VueLoaderPlugin
const { VueLoaderPlugin } = require('vue-loader')
②
less-loader的版本不同,配置不同。
V6.0.0之前
options: {
javascriptEnabled: true
}
V6.0.0之后
options: {
lessOptions: {
javascriptEnabled: true
}
}
③
const webpack = require('webpack')
new webpack.HashedModuleIdsPlugin() 变为new webpack.ids.HashedModuleIdsPlugin()
④
CommonsChunkPlugin已在4的时候去除,改用optimization.splitChunks 和 optimization.runtimeChunk
⑤
const CopyWebpackPlugin = require("copy-webpack-plugin")
CopyWebpackPlugin的选项配置改变了
举例:从
new CopyWebpackPlugin([
{
from: "./doc",//源路径
to: "./doc",//目标路径
ignore: ['.*']
}
])
变为
new CopyWebpackPlugin({
patterns: [
{
from: "./doc",//源路径
to: "./doc",//目标路径
},
globOptions: {
ignore: ['.*']
}
]
})
⑥
官网提供:从 v4 升级到 v5 | webpack 中文文档
以下的配置项,请升级至最新的版本:
optimization.hashedModuleIds: true→optimization.moduleIds: 'hashed'optimization.namedChunks: true→optimization.chunkIds: 'named'optimization.namedModules: true→optimization.moduleIds: 'named'NamedModulesPlugin→optimization.moduleIds: 'named'NamedChunksPlugin→optimization.chunkIds: 'named'HashedModuleIdsPlugin→optimization.moduleIds: 'hashed'optimization.noEmitOnErrors: false→optimization.emitOnErrors: trueoptimization.occurrenceOrder: true→optimization: { chunkIds: 'total-size', moduleIds: 'size' }optimization.splitChunks.cacheGroups.vendors→optimization.splitChunks.cacheGroups.defaultVendorsoptimization.splitChunks.cacheGroups.test(module, chunks)→optimization.splitChunks.cacheGroups.test(module, { chunkGraph, moduleGraph })Compilation.entries→Compilation.entryDependenciesserve→serve已被移除,推荐使用 DevServer- Rule.query (从 v3 开始被移除) →
Rule.options/UseEntry.options Rule.loaders→ Rule.use
例子:
optimization: {
moduleIds: 'named' // webpack5 采用此方式代替 NamedModulesPlugin
},
文章详细列举了Webpack在不同版本间的若干重大变更,包括vue-loader的引入方式变化,less-loader的选项调整,HashedModuleIdsPlugin的更新,CommonsChunkPlugin的替换,CopyWebpackPlugin配置的改变以及optimization设置的升级。这些变更反映了Webpack向更优化、更简洁的配置方向发展。
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