This plugin uses UglifyJS v3 (uglify-es
) to minify your JavaScript
ℹ️
webpack =< v3.0.0
currently containsv0.4.6
of this plugin underwebpack.optimize.UglifyJsPlugin
as an alias. For usage of the latest version (v1.0.0
), please follow the instructions below. Aliasingv1.0.0
aswebpack.optimize.UglifyJsPlugin
is scheduled forwebpack v4.0.0
npm i -D uglifyjs-webpack-plugin
webpack.config.js
const UglifyJsPlugin = require('uglifyjs-webpack-plugin')
module.exports = {
plugins: [
new UglifyJsPlugin()
]
}
test
{RegExp|Array<RegExp>}
/.js($|\?)/i
include
{RegExp|Array<RegExp>}
undefined
包含
的文件
exclude
{RegExp|Array<RegExp>}
undefined
排除
的文件。
cache
{Boolean|String}
false
parallel
{Boolean|Object}
false
sourceMap
{Boolean}
false
cheap-source-map
选项不适用于此插件
extractComments
{Boolean|RegExp|Function<(node, comment) -> {Boolean|Object}>}
false
warningsFilter
{Function(source) -> {Boolean}}
() => true
##
webpack.config.js
[
new UglifyJsPlugin({
test: /\.js($|\?)/i
})
]
include
webpack.config.js
[
new UglifyJsPlugin({
include: /\/includes/
})
]
exclude
webpack.config.js
[
new UglifyJsPlugin({
exclude: /\/excludes/
})
]
cache
{Boolean}
webpack.config.js
[
new UglifyJsPlugin({
cache: true
})
]
Enable file caching.
Default path to cache directory: node_modules/.cache/uglifyjs-webpack-plugin
.
{String}
webpack.config.js
[
new UglifyJsPlugin({
cache: 'path/to/cache'
})
]
Path to cache directory.
parallel
{Boolean}
webpack.config.js
[
new UglifyJsPlugin({
parallel: true
})
]
Enable parallelization.
Default number of concurrent runs: os.cpus().length - 1
.
{Number}
webpack.config.js
[
new UglifyJsPlugin({
parallel: 4
})
]
Number of concurrent runs.
ℹ️ Parallelization can speedup your build significantly and is therefore highly recommended
sourceMap
webpack.config.js
[
new UglifyJsPlugin({
sourceMap: true
})
]
⚠️
cheap-source-map
options don't work with this plugin
uglifyOptions
ie8
{Boolean}
false
ecma
{Number}
undefined
5
, 6
, 7
or 8
). Affects parse
, compress
&& output
options
{Boolean|Object}
true
{Object}
{}
warnings
{Boolean}
false
webpack.config.js
[
new UglifyJsPlugin({
uglifyOptions: {
ie8: false,
ecma: 8,
parse: {...options},
mangle: {
...options,
properties: {
// mangle property options
}
},
output: {
comments: false,
beautify: false,
...options
},
compress: {...options},
warnings: false
}
})
]
extractComments
{Boolean}
All comments that normally would be preserved by the comments
option will be moved to a separate file. If the original file is named foo.js
, then the comments will be stored to foo.js.LICENSE
.
{RegExp|String}
or {Function<(node, comment) -> {Boolean}>}
All comments that match the given expression (resp. are evaluated to true
by the function) will be extracted to the separate file. The comments
option specifies whether the comment will be preserved, i.e. it is possible to preserve some comments (e.g. annotations) while extracting others or even preserving comments that have been extracted.
{Object}
condition
{Regex|Function}
filename
{String|Function}
${file}.LICENSE
{String}
字符串或者是一个 {Function<(string) -> {String}>}
返回字符串的函数,作为原文件名。默认加上文件后缀名 .LICENSE
banner
{Boolean|String|Function}
/*! For license information please see ${filename}.js.LICENSE */
false
(表示没有 banner),一个 {String}
,或者一个 {Function<(string) -> {String}
返回字符串的函数,会在提取已经被存储注释的时候被调用。注释会被覆盖。
warningsFilter
webpack.config.js
[
new UglifyJsPlugin({
warningsFilter: (src) => true
})
]
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