Compressor 3.5 windows how to#
Will minify the file myfile.js and output the file myfile-min.js.įor more information on how to use the YUI Compressor, please refer to the documentation The following command line (x.y.z represents the version number): $ java -jar yuicompressor-x.y.z.jar myfile.js -o myfile-min.js Note: If no input file is specified, it defaults to stdin.
Compressor 3.5 windows code#
Is useful when compressed code has to be run through JSLint (which is theĭisable all the built-in micro optimizations. Preserve unnecessary semicolons (such as right before a '}') This option css files and save them as -min.cssĭisplay informational messages and warnings. Java -jar yuicompressor.jar -o '.css$:-min.css' *.css Supports a filter syntax for expressing the output pattern when there are If not specified, the YUI Compressor willĭefault to the standard output, which you can redirect to a file. Otherwise, it will assume that the platform'sĭefault character set is being used. If a supported character set is specified, the YUI Compressor will use it Required if the input file extension is neither 'js' nor 'css'. The type of compressor (JavaScript or CSS) is chosen based on theĮxtension of the input file name (.js or. Specify 0 to get a line break after each semi-colon in JavaScript, and More readable, easier to debug (especially with the MS Script Debugger)
![compressor 3.5 windows compressor 3.5 windows](http://www.kenstone6.net/fcp_homepage/images_compressor_3.5_basics_stone/59_compressor_3.5_basics_stone.jpg)
The linebreak option is used in that case to split Some source control tools don't like files containing lines longer than, Prints help on how to use the YUI Compressor disable-optimizations Disable all micro optimizations o Place the output into or a file pattern. v, -verbose Display informational messages and warnings line-break Insert a line break after the specified column number type Specifies the type of the input file Usage: java -jar yuicompressor-x.y.z.jar Using the YUI Compressor from the command line $ java -jar yuicompressor-x.y.z.jar The YUI Compressor is open-source, so don't hesitate to look at the code to understand exactly how it works. Statement) The CSS compression algorithm uses a set of finely tuned regular expressions to compress the source CSS file. With, the YUI Compressor takes a defensive approach by not obfuscating any of the scopes containing the evil Wherever such a substitution is appropriate (in the face of Omitting as many white space characters as possible, and replacing all local symbols by a 1 (or 2, or 3) letter symbol It starts by analyzing the source JavaScript file to understand how it is structured. The YUI Compressor is written in Java (requires Java >= 1.4)Īnd relies on Rhino to tokenize the source JavaScript file.
Compressor 3.5 windows license#
YUI Compressor also makes use of and distributes a binary of JArgs the JArgs BSD license applies to this binary. Rhino is issued under the Mozilla Public License (MPL), and MPL applies to the Rhino source and binaries that are distributed with YUI Compressor, including Rhino modifications made by YUI Compressor. YUI Compressor extends and implements code from Mozilla's Rhino project. License: All code specific to YUI Compressor is issued under a BSD license.CSS minification: Description of the CSS minification performed by the compressor.Release Notes: Detailed change log for the YUI Compressor.Documentation: Detailed description of the YUI Compressor and how to use it.The YUI Compressor is also able to compress CSS files by using a port of Isaac Schlueter's regular-expression-based CSS minifier. Tests on the YUI Library have shown savings of over 20% compared to JSMin (becoming 10% after HTTP compression). The YUI Compressor is JavaScript minifier designed to be 100% safe and yield a higher compression ratio than most other tools. The goal of JavaScript and CSS minification is always to preserve the operational qualities of the code while reducing its overall byte footprint (both in raw terms and after gzipping, as most JavaScript and CSS served from production web servers is gzipped as part of the HTTP protocol).
![compressor 3.5 windows compressor 3.5 windows](https://images.thdstatic.com/productImages/03a5c7f8-aa76-49ce-ac40-8efcbb998bb6/svn/porter-cable-portable-air-compressors-pcfp02003-66_600.jpg)
The code in order not to introduce any new bugs). JSMIN, for example, does not yield optimal savings (due to its simple algorithm, it must leave many line feed characters in Each of these tools, however, has drawbacks. In terms of code minification, the most widely used tools to minify JavaScript code are Douglas Crockford's With the right design in place, there are many secondary strategies for improving performance such as minification of the code, HTTP compression, using CSS sprites, etc. Improving the engineering design of a page or a web application usually yields the biggest savings and that should always be a primary strategy. This fact outlines the importance of keeping web pages as lightweight as possible. (see this article by Tenni Theurer on the YUIBlog for more According to Yahoo!'s Exceptional Performance Team,Ĥ0% to 60% of Yahoo!'s users have an empty cache experience and about 20% of all page views are done with an empty cache