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42 lines
933 B
Text
42 lines
933 B
Text
import {ConditionalKeys} from './conditional-keys';
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/**
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Pick keys from the shape that matches the given `Condition`.
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This is useful when you want to create a new type from a specific subset of an existing type. For example, you might want to pick all the primitive properties from a class and form a new automatically derived type.
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@example
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```
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import {Primitive, ConditionalPick} from 'type-fest';
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class Awesome {
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name: string;
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successes: number;
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failures: bigint;
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run() {}
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}
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type PickPrimitivesFromAwesome = ConditionalPick<Awesome, Primitive>;
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//=> {name: string; successes: number; failures: bigint}
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```
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@example
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```
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import {ConditionalPick} from 'type-fest';
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interface Example {
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a: string;
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b: string | number;
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c: () => void;
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d: {};
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}
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type StringKeysOnly = ConditionalPick<Example, string>;
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//=> {a: string}
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```
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*/
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export type ConditionalPick<Base, Condition> = Pick<
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Base,
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ConditionalKeys<Base, Condition>
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>;
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