uglify-es
=========
A JavaScript parser, mangler/compressor and beautifier toolkit for ES6+.
#### Note:
- **`uglify-es` is API/CLI compatible with `uglify-js@3`.**
- **`uglify-es` is not backwards compatible with `uglify-js@2`.**
Install
-------
First make sure you have installed the latest version of [node.js](http://nodejs.org/)
(You may need to restart your computer after this step).
From NPM for use as a command line app:
npm install uglify-es -g
From NPM for programmatic use:
npm install uglify-es
# Command line usage
uglifyjs [input files] [options]
UglifyJS can take multiple input files. It's recommended that you pass the
input files first, then pass the options. UglifyJS will parse input files
in sequence and apply any compression options. The files are parsed in the
same global scope, that is, a reference from a file to some
variable/function declared in another file will be matched properly.
If no input file is specified, UglifyJS will read from STDIN.
If you wish to pass your options before the input files, separate the two with
a double dash to prevent input files being used as option arguments:
uglifyjs --compress --mangle -- input.js
### Command line options
```
-h, --help Print usage information.
`--help options` for details on available options.
-V, --version Print version number.
-p, --parse <options> Specify parser options:
`acorn` Use Acorn for parsing.
`bare_returns` Allow return outside of functions.
Useful when minifying CommonJS
modules and Userscripts that may
be anonymous function wrapped (IIFE)
by the .user.js engine `caller`.
`expression` Parse a single expression, rather than
a program (for parsing JSON).
`spidermonkey` Assume input files are SpiderMonkey
AST format (as JSON).
-c, --compress [options] Enable compressor/specify compressor options:
`pure_funcs` List of functions that can be safely
removed when their return values are
not used.
-m, --mangle [options] Mangle names/specify mangler options:
`reserved` List of names that should not be mangled.
--mangle-props [options] Mangle properties/specify mangler options:
`builtins` Mangle property names that overlaps
with standard JavaScript globals.
`debug` Add debug prefix and suffix.
`domprops` Mangle property names that overlaps
with DOM properties.
`keep_quoted` Only mangle unquoted properties.
`regex` Only mangle matched property names.
`reserved` List of names that should not be mangled.
-b, --beautify [options] Beautify output/specify output options:
`beautify` Enabled with `--beautify` by default.
`preamble` Preamble to prepend to the output. You
can use this to insert a comment, for
example for licensing information.
This will not be parsed, but the source
map will adjust for its presence.
`quote_style` Quote style:
0 - auto
1 - single
2 - double
3 - original
`wrap_iife` Wrap IIFEs in parenthesis. Note: you may
want to disable `negate_iife` under
compressor options.
-o, --output <file> Output file path (default STDOUT). Specify `ast` or
`spidermonkey` to write UglifyJS or SpiderMonkey AST
as JSON to STDOUT respectively.
--comments [filter] Preserve copyright comments in the output. By
default this works like Google Closure, keeping
JSDoc-style comments that contain "@license" or
"@preserve". You can optionally pass one of the
following arguments to this flag:
- "all" to keep all comments
- a valid JS RegExp like `/foo/` or `/^!/` to
keep only matching comments.
Note that currently not *all* comments can be
kept when compression is on, because of dead
code removal or cascading statements into
sequences.
--config-file <file> Read `minify()` options from JSON file.
-d, --define <expr>[=value] Global definitions.
--ecma <version> Specify ECMAScript release: 5, 6, 7 or 8.
--ie8 Support non-standard Internet Explorer 8.
Equivalent to setting `ie8: true` in `minify()`
for `compress`, `mangle` and `output` options.
By default UglifyJS will not try to be IE-proof.
--keep-classnames Do not mangle/drop class names.
--keep-fnames Do not mangle/drop function names. Useful for
code relying on Function.prototype.name.
--name-cache <file> File to hold mangled name mappings.
--safari10 Support non-standard Safari 10/11.
Equivalent to setting `safari10: true` in `minify()`
for `mangle` and `output` options.
By default `uglify-es` will not work around
Safari 10/11 bugs.
--self Build UglifyJS as a library (implies --wrap UglifyJS)
--source-map [options] Enable source map/specify source map options:
`base` Path to compute relative paths from input files.
`content` Input source map, useful if you're compressing
JS that was generated from some other original
code. Specify "inline" if the source map is
included within the sources.
`filename` Name and/or location of the output source.
`includeSources` Pass this flag if you want to include
the content of source files in the
source map as sourcesContent property.
`root` Path to the original source to be included in
the source map.
`url` If specified, path to the source map to append in
`//# sourceMappingURL`.
--timings Disp
待办事项web源码，适合新手_todolist
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待办事项web源码，适合新手_todolist （2000个子文件） 
Yoga.cpp 155KB ConnectionTests.cpp 77KB Differentiator.cpp 73KB LayoutAnimationKeyFrameManager.cpp 65KB Binding.cpp 59KB testlib.cpp 46KB JSCRuntime.cpp 44KB MessageTypes.cpp 37KB Connection.cpp 36KB YGJNIVanilla.cpp 34KB MountingTest.cpp 34KB JavaTurboModule.cpp 28KB Inspector.cpp 24KB UIManagerBinding.cpp 23KB YogaLayoutableShadowNode.cpp 23KB JSIExecutor.cpp 18KB YGNode.cpp 17KB InspectorState.cpp 16KB LayoutableShadowNodeTest.cpp 15KB jsi.cpp 14KB Transform.cpp 13KB Scheduler.cpp 13KB MessageTests.cpp 13KB ShadowTree.cpp 13KB NativeToJsBridge.cpp 12KB AndroidTextInputProps.cpp 12KB UIManager.cpp 11KB Props.cpp 11KB CatalystInstanceImpl.cpp 11KB InspectorTests.cpp 11KB ScrollViewProps.cpp 10KB RawPropsTest.cpp 10KB BridgeNativeModulePerfLogger.cpp 9KB TurboModulePerfLogger.cpp 9KB LayoutableShadowNode.cpp 9KB ShadowNodeTest.cpp 9KB MethodInvoker.cpp 9KB Instance.cpp 9KB LayoutTest.cpp 9KB LayoutAnimationDriver.cpp 9KB TextLayoutManager.cpp 9KB ParagraphShadowNode.cpp 8KB AndroidTextInputShadowNode.cpp 8KB HermesExecutorFactory.cpp 8KB TextAttributes.cpp 8KB JavaModuleWrapper.cpp 8KB ShadowNode.cpp 8KB ModuleRegistry.cpp 7KB ViewTest.cpp 7KB MessageConverters.cpp 7KB FindNodeAtPointTest.cpp 7KB MicroProfiler.cpp 7KB YGNodePrint.cpp 7KB ViewProps.cpp 7KB CxxNativeModule.cpp 7KB main.cpp 7KB OnLoad.cpp 7KB ShadowTreeLifeCycleTest.cpp 7KB AndroidTextInputEventEmitter.cpp 7KB ComponentDescriptorRegistry.cpp 7KB SampleTurboModuleSpec.cpp 6KB StubViewTree.cpp 6KB TurboCxxModule.cpp 6KB StateReconciliationTest.cpp 6KB JSIDynamic.cpp 6KB UITemplateProcessorTest.cpp 6KB RawPropsParser.cpp 6KB UITemplateProcessor.cpp 6KB MountingCoordinator.cpp 5KB TurboModuleManager.cpp 5KB methodcall.cpp 5KB BaseTextProps.cpp 5KB CoreComponentsRegistry.cpp 5KB EventEmitters.cpp 5KB YGEnums.cpp 5KB JSBigString.cpp 5KB NativeSampleTurboCxxModuleSpecJSI.cpp 5KB SampleCxxModule.cpp 5KB ProxyExecutor.cpp 4KB TransactionTelemetry.cpp 4KB ComponentDescriptorTest.cpp 4KB jsarg_helpers.cpp 4KB AndroidTextInputState.cpp 4KB SampleTurboCxxModuleLegacyImpl.cpp 4KB traitCastTest.cpp 4KB TextInputShadowNode.cpp 4KB JSIndexedRAMBundle.cpp 4KB ConnectionDemuxTests.cpp 4KB DebugStringConvertible.cpp 4KB AsyncHermesRuntime.cpp 4KB AutoAttachUtils.cpp 4KB ConnectionDemux.cpp 4KB ShadowNodeFamily.cpp 4KB RemoteObjectsTableTest.cpp 4KB ShadowViewMutation.cpp 4KB OnLoad.cpp 4KB YogaStylableProps.cpp 4KB AttributedString.cpp 4KB TextInputEventEmitter.cpp 4KB ReadableNativeMap.cpp 3KB共 2000 条
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