零配置打包工具parcel

最近下载了一个tensorflowjs的一个demo研究的时候发现,该demo项目使用了parcel-bundler作为打包工具

package.json :

{
  "name": "tfjs-examples-polynomial-regression-core",
  "version": "0.1.0",
  "description": "",
  "main": "index.js",
  "license": "Apache-2.0",
  "private": true,
  "engines": {
    "node": ">=8.9.0"
  },
  "dependencies": {
    "@tensorflow/tfjs": "^0.12.5",
    "parcel-bundler": "^1.8.1",
    "vega-embed": "^3.2.0",
    "vega-lite": "^2.3.1"
  },
  "scripts": {
    "watch": "cross-env NODE_ENV=development parcel index.html --no-hmr --open",
    "build": "cross-env NODE_ENV=production parcel build index.html --no-minify --public-url ./",
    "postinstall": "yarn upgrade --pattern @tensorflow"
  },
  "devDependencies": {
    "babel-plugin-transform-runtime": "~6.23.0",
    "babel-polyfill": "~6.26.0",
    "babel-preset-env": "~1.6.1",
    "clang-format": "~1.2.2",
    "cross-env": "^5.1.6",
    "parcel-bundler": "~1.8.1"
  }
}

执行npm run watch 就开始打包项目,无需其他配置