Object Types

Describe the shape of an object by listing its properties and their types.

Exampletypescript

Missing or extra properties are errors, and so are typos.

Exampletypescript

Add ? to make a property optional.

Exampletypescript

Quick check

What does `nickname?: string` mean?

The property must be a stringThe property may be left outThe property is read only

Your turn: write the code

Give user an object type with a name (string) and an age (number), then print Ada is 36.

Finish the quick check (and any code exercise) to complete this lesson, or mark it done yourself.

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