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3、配置gulpfile.js

3.1、基本使用

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var gulp = require('gulp'),     uglify = require('gulp-uglify');   gulp.task('jsmin', function () {     gulp.src('src/js/index.js')         .pipe(uglify())         .pipe(gulp.dest('dist/js')); });

3.2、压缩多个js文件

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var gulp = require('gulp'),     uglify = require('gulp-uglify');   gulp.task('jsmin', function () {     gulp.src(['src/js/index.js','src/js/detail.js']) //多个文件以数组形式传入         .pipe(uglify())         .pipe(gulp.dest('dist/js')); });

3.3、匹配符“!”，“*”，“**”，“{}”

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var gulp = require('gulp'),     uglify= require('gulp-uglify');   gulp.task('jsmin', function () {     //压缩src/js目录下的所有js文件     //除了test1.js和test2.js（**匹配src/js的0个或多个子文件夹）     gulp.src(['src/js/*.js', '!src/js/**/{test1,test2}.js'])         .pipe(uglify())         .pipe(gulp.dest('dist/js')); });

3.4、指定变量名不混淆改变

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var gulp = require('gulp'),     uglify= require('gulp-uglify');   gulp.task('jsmin', function () {     gulp.src(['src/js/*.js', '!src/js/**/{test1,test2}.js'])         .pipe(uglify({             //mangle: true,//类型：Boolean 默认：true 是否修改变量名             mangle: {except: ['require' ,'exports' ,'module' ,'$']}//排除混淆关键字         }))         .pipe(gulp.dest('dist/js')); });

3.5、gulp-uglify其他参数 具体参看

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var gulp = require('gulp'),     uglify= require('gulp-uglify');   gulp.task('jsmin', function () {     gulp.src(['src/js/*.js', '!src/js/**/{test1,test2}.js'])         .pipe(uglify({             mangle: true,//类型：Boolean 默认：true 是否修改变量名             compress: true,//类型：Boolean 默认：true 是否完全压缩             preserveComments: 'all' //保留所有注释         }))         .pipe(gulp.dest('dist/js')); });

4、执行任务

4.1、命令提示符执行：gulp jsmin

5、结束语