autoprefixer和autoprefixer-loader有什么区别吗？

Question

请教下autoprefixer和autoprefixer-loader有什么区别吗？

我不知道这两者间是不是有多余？

"devDependencies": {
    "less": "^2.7.1",
    "less-loader": "^2.2.3",
    "autoprefixer": "^7.1.2",
    "autoprefixer-loader": "^2.0.0",
    }

module: {
    rules: [
      {
        test: /\.vue$/,
        loader: 'vue-loader',
        options: vueLoaderConfig
      },
      {
        test: /\.js$/,
        loader: 'babel-loader',
        include: [resolve('src'), resolve('test'), resolve('node_modules/webpack-dev-server/client')]
      },
      {
        test: /\.less/,
        use: ExtractTextPlugin.extract({
          use: ['css-loader?minimize', 'autoprefixer-loader', 'less-loader'],
          fallback: 'style-loader'
        })
      },