Clarify that JSX braces require expressions (Fixes #8247) #8249
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Explain that JSX curly braces expect expressions, not statements, and show how to use if before return vs expression forms inline. Fixes reactjs#8247
Size changesDetails📦 Next.js Bundle Analysis for react-devThis analysis was generated by the Next.js Bundle Analysis action. 🤖 This PR introduced no changes to the JavaScript bundle! 🙌 |
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Summary
Clarifies a potentially misleading explanation on
/learnabout conditionals in JSX.JSX curly braces (
{}) accept expressions, not statements. This can confuse beginners into thinkingif"doesn't work in JSX", when the real issue is thatifis a statement and must be used in regular JavaScript before returning JSX.Fixes #8247
What changed
src/content/learn/index.mdin the Conditional rendering section.{}in JSX expects an expressionifis a statement, so it should run beforereturn(e.g. assign JSX to a variable)? :Verification
/learnlocally and confirmed the clarification reads naturally between theif...elseexample and the? :example.