What is a union type in TypeScript?

Can you explain what a union type is in TypeScript?

Sure! A union type in TypeScript allows you to define a variable that can hold multiple types. For example, you can have a variable that can be either a string or a number.

How do I define a union type in my code?

You can define a union type using the pipe symbol '|'. For instance: let value: string | number; This means 'value' can be either a string or a number.

Can you give me an example of using a union type in a function?

Absolutely! Here's an example: function printValue(value: string | number) { console.log(value); } This function can accept either a string or a number as an argument.

Are there any limitations to using union types?

Yes, when using union types, you need to use type guards to determine the type before performing operations specific to that type.