projecte_ionic/node_modules/type-fest/source/conditional-except.d.ts
2022-02-09 18:30:03 +01:00

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TypeScript
Executable file

import {Except} from './except';
import {ConditionalKeys} from './conditional-keys';
/**
Exclude keys from a shape that matches the given `Condition`.
This is useful when you want to create a new type with a specific set of keys from a shape. For example, you might want to exclude all the primitive properties from a class and form a new shape containing everything but the primitive properties.
@example
```
import {Primitive, ConditionalExcept} from 'type-fest';
class Awesome {
name: string;
successes: number;
failures: bigint;
run() {}
}
type ExceptPrimitivesFromAwesome = ConditionalExcept<Awesome, Primitive>;
//=> {run: () => void}
```
@example
```
import {ConditionalExcept} from 'type-fest';
interface Example {
a: string;
b: string | number;
c: () => void;
d: {};
}
type NonStringKeysOnly = ConditionalExcept<Example, string>;
//=> {b: string | number; c: () => void; d: {}}
```
*/
export type ConditionalExcept<Base, Condition> = Except<
Base,
ConditionalKeys<Base, Condition>
>;