局部注册 按需引用 打包后的大小并没有减少

[w550]

"vue-baidu-map": "^0.18.4",
局部注册没有减少文件大小

<template>
  <baidu-map class="bm-view" ak="YOUR_APP_KEY">
  </baidu-map>
</template>

<script>
import {BaiduMap} from 'vue-baidu-map'
export default {
  components: {
    BaiduMap
  }
}
</script>

<style>
.bm-view {
  width: 100%;
  height: 300px;
}
</style>

[Dafrok]

如果你是用 webpack2 打包，它目前还不支持 UMD 模块的 tree shaking，这里还没进行处理，后续版本会根据你提出的这类需求单独 build 一份静态模块的包。

如果你目前急用的话，可以直接 import vue-baidu-map/src 文件夹下的独立组件，因为是静态模块所以 webpack 2 是可以 shaking 掉的。

[w550]

@Dafrok
抱歉忘记讲版本号了。我的webpack是3.6。

"dependencies": {
    "axios": "^0.16.2",
    "better-scroll": "^1.3.1",
    "bootstrap": "4.0.0-beta",
    "chart.js": "^2.7.0",
    "fastclick": "^1.0.6",
    "lrz": "^4.9.40",
    "postcss-write-svg": "jonathantneal/postcss-write-svg",
    "pug": "^2.0.0-rc.4",
    "vee-validate": "^2.0.0-rc.19",
    "vue": "^2.4.4",
    "vue-baidu-map": "^0.18.4",
    "vue-chartjs": "^3.0.0",
    "vue-infinite-loading": "^2.2.1",
    "vue-infinite-scroll": "^2.0.2",
    "vue-moment": "^2.0.2",
    "vue-router": "^2.7.0",
    "vue-touchfeedback": "^2.0.0",
    "vuex": "^2.4.0",
    "vux": "^2.6.5",
    "vux-loader": "^1.1.13"
  },
  "devDependencies": {
    "ajv": "^5.2.3",
    "autoprefixer": "^7.1.4",
    "babel-core": "^6.26.0",
    "babel-eslint": "^8.0.1",
    "babel-loader": "^7.1.2",
    "babel-plugin-istanbul": "^4.1.5",
    "babel-plugin-transform-runtime": "^6.23.0",
    "babel-preset-env": "^1.6.0",
    "babel-preset-stage-2": "^6.24.1",
    "babel-register": "^6.26.0",
    "chai": "^4.1.2",
    "chalk": "^2.1.0",
    "chromedriver": "^2.32.3",
    "connect-history-api-fallback": "^1.3.0",
    "copy-webpack-plugin": "^4.0.1",
    "cross-env": "^5.0.5",
    "cross-spawn": "^5.1.0",
    "css-loader": "^0.28.7",
    "cssnano": "^3.10.0",
    "eslint": "^4.7.2",
    "eslint-config-standard": "^10.2.1",
    "eslint-friendly-formatter": "^3.0.0",
    "eslint-loader": "^1.9.0",
    "eslint-plugin-html": "^3.2.2",
    "eslint-plugin-import": "^2.7.0",
    "eslint-plugin-node": "^5.1.1",
    "eslint-plugin-promise": "^3.5.0",
    "eslint-plugin-standard": "^3.0.1",
    "eventsource-polyfill": "^0.9.6",
    "express": "^4.15.5",
    "extract-text-webpack-plugin": "^3.0.0",
    "file-loader": "^0.11.2",
    "friendly-errors-webpack-plugin": "^1.6.1",
    "html-webpack-plugin": "^2.30.1",
    "http-proxy-middleware": "^0.17.4",
    "inject-loader": "^3.0.1",
    "karma": "^1.7.1",
    "karma-coverage": "^1.1.1",
    "karma-mocha": "^1.3.0",
    "karma-phantomjs-launcher": "^1.0.4",
    "karma-phantomjs-shim": "^1.5.0",
    "karma-sinon-chai": "^1.3.2",
    "karma-sourcemap-loader": "^0.3.7",
    "karma-spec-reporter": "0.0.31",
    "karma-webpack": "^2.0.4",
    "less": "2.3.1",
    "less-loader": "^4.0.5",
    "mocha": "^3.5.3",
    "nightwatch": "^0.9.16",
    "node-sass": "^4.5.3",
    "opn": "^5.1.0",
    "optimize-css-assets-webpack-plugin": "^3.2.0",
    "ora": "^1.3.0",
    "phantomjs-prebuilt": "^2.1.15",
    "postcss-px-to-viewport": "^0.0.3",
    "rimraf": "^2.6.2",
    "sass-loader": "^6.0.6",
    "selenium-server": "^3.5.3",
    "semver": "^5.4.1",
    "shelljs": "^0.7.8",
    "sinon": "2.1.0",
    "sinon-chai": "^2.13.0",
    "url-loader": "^0.5.9",
    "vue-loader": "^13.0.5",
    "vue-style-loader": "^3.0.3",
    "vue-template-compiler": "^2.4.4",
    "webpack": "^3.6.0",
    "webpack-bundle-analyzer": "^2.9.0",
    "webpack-dev-middleware": "^1.12.0",
    "webpack-hot-middleware": "^2.19.1",
    "webpack-merge": "^4.1.0"
  },

[Dafrok]

2 和 3 没什么本质区别，2 是指 2 以上的版本，我没表达清楚。这么区分是因为 1 压根就不支持 tree shaking。

[w550]

@Dafrok
好的。谢谢。支持加油。

[Dafrok]

同步一下进度，babel 做 tree shaking 只能通过 plugin，我新开个项目搞。顺便上面问无关问题的我就删掉了，有问题请用 issue 生成器发。

[hwen]

问一下，B大打算怎么实现这个。是类似 Element UI 那种，将组件都写在一个 package 里，然后通过 babel-plugin-component 来实现吗？

[Dafrok]

如果不分包只能这么干，babel 还是太保守了😂

[Dafrok]

突然觉得自己想多了，受到 rxjs 的启发发现其实直接 import 模块下的文件不就好了，反正只要是 es module 就能摇树，入口又不是只有一个 main

[Dafrok]

0.20.0 版本更新了局部注册的方式，文档暂时还没有跟进，可以直接 import 'vue-baidu-map/components/相应的组件' 就可以注册了

[zouyaoji]

不好意思，打扰题主问一下，局部注册时，load的include和exclude应该怎么设置？
我用的vue-cli模板，在webpack.base.conf.js折腾了好久了没成功。

ERROR in ./node_modules/vue-baidu-map/components/Map/Map.vue
Module parse failed: Unexpected token (1:0)
You may need an appropriate loader to handle this file type.
| <template>
| <div>
|   <div v-if="!hasBmView" ref="view" style="width: 100%; height: 100%;"></div>
 @ ./node_modules/babel-loader/lib!./node_modules/vue-loader/lib/selector.js?type=script&index=0!./src/components/pages/contact/contact.vue 3:0-60
 @ ./src/components/pages/contact/contact.vue
 @ ./src/components lazy ^\.\/.*\.vue$
 @ ./src/router.js
 @ ./src/main.js
 @ multi ./build/hot-reload.js ./src/main.js
Child html-webpack-plugin for "index.html":

[zouyaoji]

打扰了，不用理我了，另外init了一个模板好了，不知道我把哪儿改乱了……