import { type ConditionalPick } from "https://deno.land/x/actionify@0.3.0/src/deps/types.ts";
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.
Examples
Example 1
Example 1
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 2
Example 2
import type {ConditionalPick} from 'type-fest';
interface Example {
a: string;
b: string | number;
c: () => void;
d: {};
}
type StringKeysOnly = ConditionalPick<Example, string>;
//=> {a: string}
definition: Pick<Base, ConditionalKeys<Base, Condition>>