How to perform a forEach loop on a variable defied as string | Array?

Question

How to perform a forEach loop on a variable defied as string | Array<string>?

Accepted Answer

if (Array.isArray(question.answer)) { (question.answer as Array).forEach(...) } also you can do this to have a uniform code let answers : Array = []; if (Array.isArray(question.answer)) { answers = [...question.answer]; } else if (!!question.answer){ answers = [question.answer]; } answers.forEach(answer => ....)

How to perform a forEach loop on a variable defied as string | Array<string>?

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