//// [keywordInJsxIdentifier.tsx]

declare var React: any;
<foo class-id/>;
<foo class/>;
<foo class-id="1"/>;
<foo class="1"/>;


//// [keywordInJsxIdentifier.js]
React.createElement("foo", {"class-id": true});
React.createElement("foo", {"class": true});
React.createElement("foo", {"class-id": "1"});
React.createElement("foo", {"class": "1"});
