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I have developed an application on my local. The client and server run on different ports. The application runs fine on my local system. I have now pushed the code onto the server. When I try running the code using npm run build.
I get an error that looks like this
My urlMixin.js looks like this
let path = require('path');
let webpack = require('webpack');
module.exports = {
entry: './src/main.js',
output: {
path: path.resolve(__dirname, './dist'),
publicPath: '/dist/',
filename: 'build.js'
},
module: {
rules: [{
test: /\.vue$/,
loader: 'vue-loader',
options: {
loaders: {}
// other vue-loader options go here
}
},
{
test: /\.js$/,
loader: 'babel-loader',
exclude: /node_modules/
},
{
test: /\.(png|jpg|gif|svg)$/,
loader: 'file-loader',
options: {
name: '[name].[ext]?[hash]'
}
}
]
},
resolve: {
alias: {
'vue$': 'vue/dist/vue.esm.js',
},
extensions: ['*', '.js', '.vue', '.json']
},
devServer: {
proxy: {
'/api': {
target: 'http://localhost:3000'
}
},
historyApiFallback: true,
noInfo: true
},
performance: {
hints: false
},
devtool: '#eval-source-map'
}
if (process.env.NODE_ENV === 'production') {
module.exports.devtool = '#source-map'
// .html
module.exports.plugins = (module.exports.plugins || []).concat([
new webpack.DefinePlugin({
'process.env': {
NODE_ENV: '"production"'
}
}),
new webpack.optimize.UglifyJsPlugin({
sourceMap: true,
press: {
warnings: false
}
}),
new webpack.LoaderOptionsPlugin({
minimize: true
})
])
}
I have developed an application on my local. The client and server run on different ports. The application runs fine on my local system. I have now pushed the code onto the server. When I try running the code using npm run build.
I get an error that looks like this
My urlMixin.js looks like this
let path = require('path');
let webpack = require('webpack');
module.exports = {
entry: './src/main.js',
output: {
path: path.resolve(__dirname, './dist'),
publicPath: '/dist/',
filename: 'build.js'
},
module: {
rules: [{
test: /\.vue$/,
loader: 'vue-loader',
options: {
loaders: {}
// other vue-loader options go here
}
},
{
test: /\.js$/,
loader: 'babel-loader',
exclude: /node_modules/
},
{
test: /\.(png|jpg|gif|svg)$/,
loader: 'file-loader',
options: {
name: '[name].[ext]?[hash]'
}
}
]
},
resolve: {
alias: {
'vue$': 'vue/dist/vue.esm.js',
},
extensions: ['*', '.js', '.vue', '.json']
},
devServer: {
proxy: {
'/api': {
target: 'http://localhost:3000'
}
},
historyApiFallback: true,
noInfo: true
},
performance: {
hints: false
},
devtool: '#eval-source-map'
}
if (process.env.NODE_ENV === 'production') {
module.exports.devtool = '#source-map'
// http://vue-loader.vuejs/en/workflow/production.html
module.exports.plugins = (module.exports.plugins || []).concat([
new webpack.DefinePlugin({
'process.env': {
NODE_ENV: '"production"'
}
}),
new webpack.optimize.UglifyJsPlugin({
sourceMap: true,
press: {
warnings: false
}
}),
new webpack.LoaderOptionsPlugin({
minimize: true
})
])
}
Is there something wrong with my webpack? What wrong am I doing? Can someone please help me out?
Share Improve this question asked May 4, 2018 at 23:18 CoderPJCoderPJ 1,0116 gold badges20 silver badges44 bronze badges 2- Similar: stackoverflow./questions/43598037/… – CertainPerformance Commented May 4, 2018 at 23:20
- Also similar: https://stackoverflow./questions/42375468/uglify-syntaxerror-unexpected-token-punc. And it looks like the most upvoted answer probably has what you're looking for – Ohgodwhy Commented May 5, 2018 at 3:47
2 Answers
Reset to default 3A change from
new webpack.optimize.UglifyJsPlugin()
to
const UglifyJSPlugin = require('uglifyjs-webpack-plugin');
[...]
new UglifyJSPlugin()
with npm install --save uglifyjs-webpack-plugin fixes it. https://github./webpack/webpack/issues/5858#issuement-338430720
I think you need to add the presets
option in the js rule section of your webpack.config
. Below is a sample snippet for js rule:
{
test: /\.m?js$/,
use: {
loader: 'babel-loader',
options: {
presets: ['@babel/preset-env']
}
},
exclude: [/node_modules/]
}
This error in UglifyJs
plugin mostly happens when the file is in es6 or newer versions. I think UglifyJs
plugin is not working on js versions newer than es5 and we need presets to add required plugins to transpile it to older versions.
本文标签: javascriptERROR in buildjs from UglifyJs Unexpected token punc (()Stack Overflow
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