Can you explain what union types are in programming?
Union types allow a variable to hold multiple types of values. For example, a variable can be either a string or a number.
What about optional types? How do they work?
Optional types indicate that a value may or may not be present. In TypeScript, for instance, you can use a question mark to denote an optional property.
Can you give me an example of both union and optional types in TypeScript?
Sure! In TypeScript, you might define a variable like this: let value: string | number;
for union, and let name?: string;
for an optional type.
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