How to specify optional properties in TypeScript?

1.	How to specify optional properties in TypeScript?
Answer» An OBJECT TYPE can have zero or more optional properties by adding a ‘?’ after the property name. let pt: { x: number; y: number; Z?: number } = { x: 10, y: 20};console.log(pt); In the example above, because the property ‘z’ is marked as optional, the compiler won’t complain if we don’t provide it during the initialization.

Answer»

An OBJECT TYPE can have zero or more optional properties by adding a ‘?’ after the property name.

let pt: { x: number; y: number; Z?: number } = { x: 10, y: 20};console.log(pt);

In the example above, because the property ‘z’ is marked as optional, the compiler won’t complain if we don’t provide it during the initialization.

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