ts-property-util-types v1.0.1

Installation

Install ts-property-util-types using npm:

$ npm install --save-dev ts-property-util-types

Or, if you prefer yarn:

$ yarn add --dev ts-property-util-types

Usage

import { ExtractProperties } from "ts-property-util-types"

interface Person {
	age: number
	name: string
}

type OnlyNumberPropertiesOfPerson = ExtractProperties<Person, number>
//=> { age: number }

API

Click the type names for complete docs.

• ExcludeKeys - Create a list of keys that do not have a certain associated value type.
• ExcludeProperties - Create a type from an object type without keys that have a certain associated value type.
• ExtractKeys - Create a list of keys that have a certain associated value type.
• ExtractProperties - Create a type from an object type with only keys that have a certain associated value type.
• OptionalUndefined - Create a type from an object type where properties that can be assigned undefined are also optional.

License

This package is available as open source under the terms of the MIT License.