Predicate

added in 0.5.0 • last revisions

Syntax

type Predicate<T>

Represents a function with one parameter and a boolean return value.

Example

import { Predicate } from 'potence';

const isNotNull: Predicate<unknown> = value => value != null;

[0, 2, null, 5].filter(isNotNull);

Remarks

It is recommended not to use the Predicate<T> type in public function signatures, as most IntelliSense engines will simply display the name of the type on hover instead of resolving the type alias to the underlying type signature, which may reduce clarity for consumers of those functions who don’t know what the Predicate<T> type stands for.