Sha256: e8b405807261832262e75fc6e511b912267db4d66b52a6319a906bf273458e61
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Versions: 33
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Stored size: 761 Bytes
Contents
/**
Returns a boolean for whether given two types are equal.
@link https://github.com/microsoft/TypeScript/issues/27024#issuecomment-421529650
*/
type IsEqual<T, U> =
(<G>() => G extends T ? 1 : 2) extends
(<G>() => G extends U ? 1 : 2)
? true
: false;
/**
Returns a boolean for whether the given array includes the given item.
This can be useful if another type wants to make a decision based on whether the array includes that item.
@example
```
import {Includes} from 'type-fest';
type hasRed<array extends any[]> = Includes<array, 'red'>;
```
@category Utilities
*/
export type Includes<Value extends any[], Item> =
IsEqual<Value[0], Item> extends true
? true
: Value extends [Value[0], ...infer rest]
? Includes<rest, Item>
: false;
Version data entries
33 entries across 33 versions & 1 rubygems