flow
Use when you need to run Flow type checking, or when seeing Flow type errors in React code.
88
1.72x
Quality
81%
Does it follow best practices?
Impact
100%
1.72xAverage score across 3 eval scenarios
Securityby
Passed
No findings from the security scan
Flow Type Checking
Arguments:
- $ARGUMENTS: Renderer to check (default: dom-node)
Renderers
| Renderer | When to Use |
|---|---|
dom-node | Default, recommended for most changes |
dom-browser | Browser-specific DOM code |
native | React Native |
fabric | React Native Fabric |
Instructions
- Run
yarn flow $ARGUMENTS(usedom-nodeif no argument) - Report type errors with file locations
- For comprehensive checking (slow), use
yarn flow-ci
Common Mistakes
- Running without a renderer - Always specify or use default
dom-node - Ignoring suppressions - Check if
$FlowFixMecomments are masking real issues - Missing type imports - Ensure types are imported from the correct package
- Repository
- facebook/react
- Commit
7c6ac13
- Last updated
- First committed
Also appears in
react/react
In sync
since Mar 1, 2026
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