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Contents
import type {ConditionalKeys} from './conditional-keys';
/**
Pick keys from the shape that matches the given `Condition`.
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.
@example
```
import type {Primitive, ConditionalPick} from 'type-fest';
class Awesome {
name: string;
successes: number;
failures: bigint;
run() {}
}
type PickPrimitivesFromAwesome = ConditionalPick<Awesome, Primitive>;
//=> {name: string; successes: number; failures: bigint}
```
@example
```
import type {ConditionalPick} from 'type-fest';
interface Example {
a: string;
b: string | number;
c: () => void;
d: {};
}
type StringKeysOnly = ConditionalPick<Example, string>;
//=> {a: string}
```
@category Object
*/
export type ConditionalPick<Base, Condition> = Pick<
Base,
ConditionalKeys<Base, Condition>
>;
Version data entries
33 entries across 33 versions & 1 rubygems