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webpack4如何删除sass或css内的注释？

请教，如何删除sass或css内的注释哪？

柱的

2019-04-16

源自：webpack深入与实战 4-4

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2 回答

慕码人7593232
2019-12-01

const UglifyJsPlugin = require('uglifyjs-webpack-plugin')

    optimization: {
        minimizer: [
            // 压缩CSS
            new OptimizeCSSAssertsPlugin({}),
            // 压缩JS
            new UglifyJsPlugin({
                // 有很多可以配置
                cache: true,
                parallel: true,
                sourceMap: true,
                uglifyOptions: {
                     // 在UglifyJs删除没有用到的代码时不输出警告
                    warnings: false,
                    output: {
                        // 删除所有的注释
                        comments: false,
                        // 最紧凑的输出
                        beautify: false
                    },
                    compress: {
                        // 删除所有的 `console` 语句
                        // 还可以兼容ie浏览器
                        drop_console: true,
                        // 内嵌定义了但是只用到一次的变量
                        collapse_vars: true,
                        // 提取出出现多次但是没有定义成变量去引用的静态值
                        reduce_vars: true,
                    }
                }
            })
        ]
    },

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慕码人7593232
2019-12-01

const UglifyJsPlugin = require('uglifyjs-webpack-plugin')

    optimization: {
        minimizer: [
            // 压缩CSS
            new OptimizeCSSAssertsPlugin({}),
            // 压缩JS
            new UglifyJsPlugin({
                // 有很多可以配置
                cache: true,
                parallel: true,
                sourceMap: true,
                uglifyOptions: {
                     // 在UglifyJs删除没有用到的代码时不输出警告
                    warnings: false,
                    output: {
                        // 删除所有的注释
                        comments: false,
                        // 最紧凑的输出
                        beautify: false
                    },
                    compress: {
                        // 删除所有的 `console` 语句
                        // 还可以兼容ie浏览器
                        drop_console: true,
                        // 内嵌定义了但是只用到一次的变量
                        collapse_vars: true,
                        // 提取出出现多次但是没有定义成变量去引用的静态值
                        reduce_vars: true,
                    }
                }
            })
        ]
    },