TypeScript for Beginners - Union Type

The video tutorial explains the concept of union types in programming, demonstrating how to create a union type that can hold both strings and numbers. It covers the syntax for defining union types using the pipe symbol and shows how to assign values to these types. The tutorial also discusses the compilation process, error handling, and the consequences of removing a type from a union, which leads to compilation errors. The video encourages experimenting with different data types to understand union types better.

What is a union type and how does it relate to data types?

Explain how the pipe symbol is used in defining types.

How can you assign different data types to a variable defined as a union type?

What happens when you remove the number type from a union type?

Describe the compilation error that occurs when assigning a number to a string type.