Web Reference: Each property in an object type can specify a couple of things: the type, whether the property is optional, and whether the property can be written to. Much of the time, we’ll find ourselves dealing with objects that might have a property set. Jul 23, 2025 · One of the key features of TypeScript is the ability to specify optional properties in interfaces and classes, providing flexibility to our object types. In this article, we will learn how to specify optional properties in TypeScript to add flexibility to our object types. denotes an optional property or method in an interface or class. In the code I provided, the "nickname" property is marked with a question mark, which means that it's optional.
YouTube Excerpt: In this video, we'll learn how to define and use
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