@lou.codes/iterables
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🔁 Iterable and AsyncIterable utils
21 lines (20 loc) • 651 B
JavaScript
import { negate } from "@lou.codes/utils";
import { every } from "./every.js";
/**
* Evaluates items in an iterable against a predicate and returns `true` if any
* item evaluates to `true`.
*
* @category Reducers
* @example
* ```typescript
* const someEven = some((number: number) => number % 2 === 0);
* someEven([1, 2, 3, 4]); // true
* someEven([1, 3, 5, 7]); // false
* ```
* @param predicate Predicate function to evaluate each item.
* @returns Curried function with `predicate` set in context.
*/
export const some = predicate => {
const everyPredicate = every(negate(predicate));
return iterable => !everyPredicate(iterable);
};