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@nestjs/mapped-types

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@nestjs/mapped-types

Nest - modern, fast, powerful node.js web framework (@mapped-types)

  • 2.0.2
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  • npm
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What is @nestjs/mapped-types?

The @nestjs/mapped-types package is a utility module for NestJS, which provides functions to transform and map types. It is commonly used to create DTOs (Data Transfer Objects) by inheriting validation rules without the need to redefine them, thus reducing redundancy and potential for errors.

What are @nestjs/mapped-types's main functionalities?

PartialType

Creates a type (class) with all the properties of the input type set to optional. Useful for update operations where only a subset of properties may be provided.

{"@nestjs/swagger": "^5.0.0", "@nestjs/mapped-types": "^0.4.0"}

PickType

Creates a type by picking a set of properties from an existing type. This is useful when you want to expose only certain fields of a model for a particular use case.

{"@nestjs/swagger": "^5.0.0", "@nestjs/mapped-types": "^0.4.0"}

OmitType

Creates a type by omitting a set of properties from an existing type. This can be used to exclude sensitive information or irrelevant properties from being exposed.

{"@nestjs/swagger": "^5.0.0", "@nestjs/mapped-types": "^0.4.0"}

IntersectionType

Combines two types into one new type (class) that includes all properties from both types. This is useful for combining properties from multiple sources or adding additional properties to an existing type.

{"@nestjs/swagger": "^5.0.0", "@nestjs/mapped-types": "^0.4.0"}

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Package last updated on 22 Jun 2023

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