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Add reference to ExecJS in JavaScript Compression section

This commit is contained in:
Guillermo Iguaran 2011-09-01 01:15:19 -05:00
parent 418e321b50
commit fdf2f519bd
1 changed files with 3 additions and 1 deletions
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railties/guides/source/asset_pipeline.textile
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@ -426,7 +426,7 @@ config.assets.css_compressor = :yui
The +config.assets.compress+ must be set to +true+ to enable CSS compression
h4. JavaScript
h4. JavaScript Compression
Possible options for JavaScript compression are +:closure+, +:uglifier+ and +:yui+. These require the use of the +closure-compiler+, +uglifier+ or +yui-compressor+ gems respectively.
@ -440,6 +440,8 @@ config.assets.js_compressor = :uglifier
The +config.assets.compress+ must be set to +true+ to enable JavaScript compression
NOTE: You will need a "ExecJS":https://github.com/sstephenson/execjs#readme - supported runtime in order to use +uglifier+. If you are using Mac OS X or Windows you have a JavaScript engine in your operating system. Check "ExecJS":https://github.com/sstephenson/execjs#readme documentation to know all supported JavaScript runtimes.
h4. Using Your Own Compressor
The compressor config settings for CSS and JavaScript also take any Object. This object must have a +compress+ method that takes a string as the sole argument and it must return a string.