{"name": "grunt-demo","version": "0.1.0","devDependencies": {"grunt": "~0.4.2","grunt-contrib-jshint": "~0.6.0","grunt-contrib-nodeunit": "~0.2.0","grunt-contrib-uglify": "~0.2.2"}
}

(function() {//output hello gruntvar helloGrunt = "Hello Grunt!(From a.js)";console.log(helloGrunt);
})();

(function() {//output hello worldvar helloWorld = "Hello World!(From b.js)";console.log(helloWorld);
})();

module.exports = function(grunt){// 项目配置grunt.initConfig({pkg: grunt.file.readJSON('package.json'),uglify: {options: {banner: '/*! <%= pkg.name %> <%= grunt.template.today("yyyy-mm-dd") %> */\n'//添加banner},builda: {//任务一：压缩a.js，不混淆变量名，保留注释，添加banner和footeroptions: {mangle: false, //不混淆变量名preserveComments: 'all', //不删除注释，还可以为 false（删除全部注释），some（保留@preserve @license @cc_on等注释）footer:'\n/*! <%= pkg.name %> 最后修改于： <%= grunt.template.today("yyyy-mm-dd") %> */'//添加footer},files: {'output/js/a.min.js': ['js/a.js']}},buildb:{//任务二：压缩b.js，输出压缩信息options: {report: "min"//输出压缩率，可选的值有 false(不输出信息)，gzip},files: {'output/js/b.min.js': ['js/main/b.js']}},buildall: {//任务三：按原文件结构压缩js文件夹内所有JS文件files: [{expand:true,cwd:'js',//js目录下src:'**/*.js',//所有js文件dest: 'output/js'//输出到此目录下}]},release: {//任务四：合并压缩a.js和b.jsfiles: {'output/js/index.min.js': ['js/a.js', 'js/main/b.js']}}}});// 加载提供"uglify"任务的插件grunt.loadNpmTasks('grunt-contrib-uglify');// 默认任务grunt.registerTask('default', ['uglify:release']);grunt.registerTask('mina', ['uglify:builda']);grunt.registerTask('minb', ['uglify:buildb']);grunt.registerTask('minall', ['uglify:buildall']);
}

/*! grunt-demo 2013-11-29 */
!function(){//output hello grunt
var helloGrunt="Hello Grunt!(From a.js)";console.log(helloGrunt)}();
/*! grunt-demo 最后修改于： 2013-11-29 */

/*! grunt-demo 2013-11-29 */
!function(){var a="Hello World!(From b.js)";console.log(a)}();

/*! grunt-demo 2013-11-29 */
!function(){var a="Hello Grunt!(From a.js)";console.log(a)}();

/*! grunt-demo 2013-11-29 */
!function(){var a="Hello World!(From b.js)";console.log(a)}();

/*! grunt-demo 2013-11-29 */
!function(){var a="Hello Grunt!(From a.js)";console.log(a)}(),function(){var a="Hello World!(From b.js)";console.log(a)}();