What are the differences between union and optional types in TypeScript?
An example of an AI chatbot conversation about differences between union and optional types in TypeScript.
Can you explain the differences between union and optional types in TypeScript?
Sure! Union types allow a variable to hold multiple types, while optional types indicate that a variable may or may not be present.
Can you give me an example of each?
Of course! For a union type, you might have let value: string | number;. For an optional type, you could use let name?: string;.
How do these types affect type checking?
Union types provide flexibility in what values a variable can hold, while optional types help in defining properties that may not always be present.
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