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13. testing-library typings: JSX.Element vs ReactElement
Type considerations for render return types and container when authoring TS tests.
JavaScript
testing-library typings: JSX.Element vs ReactElement
Knowing which React type to use for test helpers prevents TypeScript errors when inspecting render results and containers.
"I can render a component in tests, but TypeScript complains about the return type when I access container or query results."
TypeScript types for render results can be declared as JSX.Element, ReactElement, or specific HTML Element types; picking the right one avoids incompatible property or method errors when you access container, props, or children in tests.
"I can render a component in tests, but TypeScript complains about the return type when I access container or query results."
TypeScript types for render results can be declared as JSX.Element, ReactElement, or specific HTML Element types; picking the right one avoids incompatible property or method errors when you access container, props, or children in tests.