使用nodejs压缩js,css静态资源

  作者：zhanhailiang 日期：2013-05-04

1.[js压缩]uglifyjs source.js -mc -o target.min.js

以压缩angular.js为例，可以压缩局部变量名，去掉无用的局部变量，空白符等，压缩比例接近80%，效率不错

[user_00@localhost ~]$ uglifyjs angular.js -mc -o angular.min.js 
WARN: Dropping unused function isBoolean [angular.js:416,9]
WARN: Dropping unused function makeMap [angular.js:446,9]
WARN: Dropping unused function size [angular.js:488,9]
WARN: Dropping unused function isLeafNode [angular.js:523,9]
WARN: Dropping unused function argument boundTranscludeFn [angular.js:4682,27]
WARN: Dropping unused function argument rootElement [angular.js:4681,16]
WARN: Dropping unused function argument nodeList [angular.js:4680,17]
WARN: Dropping unused function argument scope [angular.js:4679,22]
WARN: Dropping unused function nodesetLinkingFn [angular.js:4678,9]
WARN: Dropping unused function argument boundTranscludeFn [angular.js:4690,27]
WARN: Dropping unused function argument rootElement [angular.js:4689,16]
WARN: Dropping unused function argument node [angular.js:4688,13]
WARN: Dropping unused function argument scope [angular.js:4687,22]
WARN: Dropping unused function argument nodesetLinkingFn [angular.js:4686,25]
WARN: Dropping unused function directiveLinkingFn [angular.js:4685,9]
WARN: Dropping unused function stripHash [angular.js:5009,9]
WARN: Dropping unused variable NG_SWITCH [angular.js:13857,4]
WARN: Dropping unused variable fns [angular.js:1536,8]
WARN: Dropping unused variable events [angular.js:1536,13]
WARN: Dropping unused function wrongMode [angular.js:3879,13]
WARN: Dropping unused function argument cause [angular.js:4799,31]
WARN: Dropping unused function argument exception [angular.js:4799,20]
WARN: Dropping unused function argument args [angular.js:8165,28]
WARN: Dropping unused function argument args [angular.js:8231,33]
WARN: Dropping unused function argument names [angular.js:9018,32]
WARN: Dropping unused function argument name [angular.js:9030,40]
WARN: Dropping unused variable value [angular.js:9230,14]
WARN: Dropping unused function argument value [angular.js:12475,36]
[user_00@localhost ~]$ ls -lh angular.*
-rw-rw-r-- 1 user_00 user_00 479K Apr  5 01:53 angular.js
-rw-rw-r-- 1 user_00 user_00  79K May  4 16:09 angular.min.js

2.[css压缩]sqwish style.css –strict

sqwish目前看来压缩比例不高。

[user_00@localhost ~]$ sqwish style.css --strict
[user_00@localhost ~]$ ls -lh style.*
-rw-rw-r-- 1 user_00 user_00 5.8K Dec 14 10:40 style.css
-rw-rw-r-- 1 user_00 user_00 5.5K May  4 16:14 style.min.css

3.待续——图片压缩工具