Plugin: react-featuresRules
jsx-no-duplicate-props
Prevent duplicate props in JSX elements. This rule is part of eslint-plugin-react-features and provides LLM-optimized error messages.
Keywords: React, JSX, props, duplicate, ESLint rule, code quality, LLM-optimized
Prevent duplicate props in JSX elements. This rule is part of eslint-plugin-react-features and provides LLM-optimized error messages.
Quick Summary
| Aspect | Details |
|---|---|
| Severity | Error (bug prevention) |
| Auto-Fix | ❌ No auto-fix |
| Category | React |
| ESLint MCP | ✅ Optimized for ESLint MCP integration |
| Best For | All React/JSX projects |
Rule Details
Duplicate JSX props cause one value to override another, which is almost always a mistake.
Examples
❌ Incorrect
<Button onClick={handleClick} onClick={handleSubmit} />
<Input name="email" name="username" />✅ Correct
<Button onClick={handleClick} />
<Input name="email" />Related Rules
jsx-key- Require key prop in iterators
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