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React Naming Conventions for Readable Code

DEV Community •
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A DEV Community article argues that poor naming is a primary source of bugs and cognitive load in React and JavaScript codebases. The author provides specific, opinionated rules to make intent obvious at the call site, covering functions, async patterns, and React-specific patterns like components and hooks.

Clear naming signals a function's behavior and potential failure points. For instance, `fetchUserAPI()` immediately indicates a network call, while `calculateUserAge()` suggests a pure, synchronous operation. This distinction helps developers reason about side effects and performance without reading implementation details.

The guide extends to React components, which should be nouns like `UserCard`, and utilities, which should be verbs like `formatUserName`. Event handlers like `handleSubmit` describe what occurred, not the action to take. Adopting these conventions creates a predictable, greppable codebase that reduces team friction and onboarding time.