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Flow

概述

  • Flow is a static type checker for JavaScript code.
  • Flow checks your code for errors through static type annotations.

安装

yarn add --dev @babel/core @babel/cli @babel/preset-flow # Setup Compiler Babel

.babelrc

{
  "presets": ["@babel/preset-flow"]
}

package.json

{
  "name": "my-project",
  "main": "lib/index.js",
  "scripts": {
    "build": "babel src/ -d lib/",
    "prepublish": "yarn run build"
  }
}

yarn add --dev flow-bin  # Setup Flow
yarn run flow init  # 初始化
yarn run flow  # 启动

新建工程

flow init    # Initialize Project
flow status  # Run the Flow Background Process