Tutorial by Examples

Flow works best when installed per-project with explicit versioning rather than globally. Luckily, if you’re already familiar with npm or yarn, this process should be pretty familiar! Add a devDependency on the flow-bin npm package: yarn add --dev flow-bin // npm install --save-dev flow-bin ...

Flow is a static type checker for your JavaScript code. It does a lot of work to make you more productive. Making you code faster, smarter, more confidently, and to a bigger scale. Flow checks your code for errors through static type annotations. These types allow you to tell Flow how you want your...