TypeScript: Omit & Pick

Omit and Pick are two utility types in TypeScript. Omit is used to exclude properties from an object type, and Pick is used to select properties from an object type. In this content, we will explain these two utility types with examples.

Omit is a utility type that is used to exclude properties from an object type. It takes two parameters: the object type and the properties to exclude. The syntax of the Omit type is as follows:

interface Article {
  id: number;
  name: string;
  description: string;
  link: string;
  tags: string[];
}


type NewArticleType = Omit<Article, "link" | "tags">;

type NewArticleType = {
 id: number;
 name: string;
 description: string;
}

Pick is a utility type that is used to select properties from an object type. It takes two parameters: the object type and the properties to select. The syntax of the Pick type is as follows:

interface Article {
  id: number;
  name: string;
  description: string;
  link: string;
  tags: string[];
}


type NewArticleType = Pick<
  Article,
  "id" | "name" | "description"
>;

type NewArticleType = {
 id: number;
 name: string;
 description: string;
}

The Omit and Pick utility types are very useful when working with TypeScript. They allow you to create new types by excluding or selecting properties from existing types. This can help you write more maintainable and readable code.

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