When
Conditional. Evaluates `condition`; if true, evaluates and returns `thenBuild`; else evaluates and returns `elseBuild` (or undefined if elseBuild is omitted).
- Subclass Of
Expression
Conditional. Evaluates `condition`; if true, evaluates and returns `thenBuild`; else evaluates and returns `elseBuild` (or undefined if elseBuild is omitted).
Expression
