F.Y.I. http://www.cnblogs.com/PeunZhang/p/5553574.html#npm
NPM的全称是Node Package Manager，是随同NodeJS一起安装的包管理和分发工具，它很方便让JavaScript开发者下载、安装、上传以及管理已经安装的包。
npm install -g gulp
Gulp只有 gulp.task(),gulp.src(),gulp.dest(),gulp.watch()
npm install -g cordova ionic
npm install -g uglify-js //这是获取帮助信息 uglifyjs -h
以下是帮助信息的输出结果
D:\gitdev\galaxy>uglifyjs -h
C:\Users\Administrator\AppData\Roaming\npm\node_modules\uglify-js\bin\uglifyjs
input1.js [input2.js ...] [options]
Use a single dash to read input from the standard input.
NOTE: by default there is no mangling/compression.
Without [options] it will simply parse input files and dump the AST
with whitespace and comments discarded. To achieve compression and
mangling you need to use `-c` and `-m`.
Options:
--source-map Specify an output file where to generate source
map. [string]
--source-map-root The path to the original source to be included
in the source map. [string]
--source-map-url The path to the source map to be added in //#
sourceMappingURL. Defaults to the value passed
with --source-map. [string]
--source-map-include-sources Pass this flag if you want to include the
content of source files in the source map as
sourcesContent property. [boolean]
--in-source-map Input source map, useful if you're compressing
JS that was generated from some other original
code.
--screw-ie8 Pass this flag if you don't care about full
compliance with Internet Explorer 6-8 quirks (by
default UglifyJS will try to be IE-proof).
[boolean]
--expr Parse a single expression, rather than a program
(for parsing JSON) [boolean]
-p, --prefix Skip prefix for original filenames that appear
in source maps. For example -p 3 will drop 3
directories from file names and ensure they are
relative paths. You can also specify -p relative
, which will make UglifyJS figure out itself the
relative paths between original sources, the
source map and the output file. [string]
-o, --output Output file (default STDOUT).
-b, --beautify Beautify output/specify output options.
[string]
-m, --mangle Mangle names/pass mangler options. [string]
-r, --reserved Reserved names to exclude from mangling.
-c, --compress Enable compressor/pass compressor options. Pass
options like -c hoist_vars=false,if_return=false
. Use -c with no argument to use the default
compression options. [string]
-d, --define Global definitions [string]
-e, --enclose Embed everything in a big function, with a
configurable parameter/argument list. [string]
--comments 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 (needs to start with a slash
) to keep only comments that match.
Note that currently not *all* comments can be
kept when compression is on, because of dead
code removal or cascading statements into
sequences. [string]
--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.
--stats Display operations run time on STDERR.
[boolean]
--acorn Use Acorn for parsing. [boolean]
--spidermonkey Assume input files are SpiderMonkey AST format (
as JSON). [boolean]
--self Build itself (UglifyJS2) as a library (implies
--wrap=UglifyJS --export-all) [boolean]
--wrap Embed everything in a big function, making the “
exports” and “global” variables available. You
need to pass an argument to this option to
specify the name that your module will take when
included in, say, a browser. [string]
--export-all Only used when --wrap, this tells UglifyJS to
add code to automatically export all globals.
[boolean]
--lint Display some scope warnings [boolean]
-v, --verbose Verbose [boolean]
-V, --version Print version number and exit. [boolean]
--noerr Don't throw an error for unknown options in -c
, -b or -m. [boolean]
--bare-returns Allow return outside of functions. Useful when
minifying CommonJS modules. [boolean]
--keep-fnames Do not mangle/drop function names. Useful for
code relying on Function.prototype.name.
[boolean]
--reserved-file File containing reserved names [array]
--reserve-domprops Make (most?) DOM properties reserved for --
mangle-props [boolean]
--mangle-props Mangle property names [boolean]
--mangle-regex Only mangle property names matching the regex
--name-cache File to hold mangled names mappings [string]
--pure-funcs List of functions that can be safely removed if
their return value is not used [array]
--dump-spidermonkey-ast Dump SpiderMonkey AST to stdout. [boolean]
-q, --quotes Quote style (0 - auto, 1 - single, 2 - double, 3
- original)
安装最简单的http server:
npm install -g http-server
启动 在站点目录下开启命令行输入
http-server
使用于package.json
"scripts": {
"start": "http-server -a 0.0.0.0 -p 8000",
}
参数
-p 端口号 (默认 8080) -a IP 地址 (默认 0.0.0.0) -d 显示目录列表 (默认 'True') -i 显示 autoIndex (默认 'True') -e or --ext 如果没有提供默认的文件扩展名(默认 'html') -s or --silent 禁止日志信息输出 --cors 启用 CORS via the Access-Control-Allow-Origin header -o 在开始服务后打开浏览器 -h or --help 打印列表并退出 -c 为 cache-control max-age header 设置Cache time(秒) , e.g. -c10 for 10 seconds (defaults to '3600'). 禁用 caching, 则使用 -c-1.