Compress multiple javascript files with YUIcompressor?

Question

I am trying to compress multiple JS files using a YUI compressor.

I think I misunderstand the syntax. I want to compress all files in a directory starting with at_ . However, when the YUI Compressor is running, I find that the YUI Compressor only posted the compressed version of one file in its output.

To be specific, suppose I have three files: at_1.js, at_2.js and at_3.js. I need compressed output of all three js files in at_min.js

I use the following syntax:

 java -jar c:\Tools\yuicompressor-2.4.2.jar --type js --charset utf-8 -oc:\temp\at_min.js c:\temp\scripts\at_* 

When I open at_min.js, I find only the compressed contents of at_1.js. What am I doing wrong?

Answer 1

If you use Windows, you can use YUI Compressor for. Net .

Or merge files before compression using a simple command:

 copy /b at_1.js+at_2.js+at_3.js at_combined.js java -jar c:\Tools\yuicompressor-2.4.2.jar --type js --charset utf-8 -o at_min.js at_combined.js 

Answer 2

I wrote a small program to compress multiple javascript files using yuicompressor and node js.

 var compressor = require('yuicompressor'); //Compressor Options: var compressorOptions = { charset: 'utf8', type: 'js', nomunge: false } /* List of files and file path. Just replace the file names and path with yours */ var file = [{ "path": "assets/www/modules/eApp/controllers/", "type": "js", "name": ["BuyOnlineController", "CustomerDetailsController", "DashboardController", "DashboardListingController", "DocumentUploadController", "HomeController", "KYCDetailsController", "PaymentAcknowledgementController", "PaymentController", "ProductListingController", "ReviewAndAcceptanceController"] }, { "path": "assets/www/modules/login/controllers/", "type": "js", "name": ["EappLoginController", "InboxController", "LandingController", "LoginController", "MenuController", "MyAccountController", "SyncForEappController"] }, { "path": "assets/www/lib/vendor/general/", "type": "js", "name": ["overlays"] }]; function minify(i, j){ i = (i == undefined) ? 0 : i; j = (j == undefined) ? 0 : j; filePath = file[i].path; fileType = file[i].type; name = file[i].name[j]; fileName = filePath+name+"."+fileType; minifiedFileName = filePath+name+".min."+fileType; if(j == file[i].name.length - 1){ i += 1; j = 0; } else j += 1; compressor.compress(fileName, compressorOptions, function(err, data, extra) { var fs = require('fs'); fs.writeFile(minifiedFileName, data, function(err) { if(err) { console.log(err); } else { console.log("The file "+minifiedFileName+" was saved successfully!"); if(i != file.length) minify(i, j); } }); }); } minify(0,0);