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// Copyright (c) 2020 Jozty. All rights reserved. MIT license.
import curryN from './utils/curry_n.ts';import type { Func, PH } from './utils/types.ts';import { isFunction } from './utils/is.ts';import { lift } from './lift.ts';import { and } from './and.ts';
// @typestype Both_2<A extends unknown[]> = (g: Func<A>) => Func<A, boolean>;
type Both_1<A extends unknown[]> = (f: Func<A>) => Func<A, boolean>;
type Both =  & (<A extends unknown[]>(f: Func<A>) => Both_2<A>)  & (<A extends unknown[]>(f: PH, g: Func<A>) => Both_1<A>)  & (<A extends unknown[]>(f: Func<A>, g: Func<A>) => Func<A, boolean>);
function _both<A extends unknown[]>(f: Func<A>, g: Func<A>): Func<A, boolean> {  if (isFunction(f)) {    return function (this: unknown, ...args: A) {      return !!(f.apply(this, args) && g.apply(this, args));    };  } else {    return lift(and)(f, g);  }}
/** * A function which calls the two provided functions and returns the `&&` * of the results. * It returns the result of the first function if it is false and the result * of the second function otherwise. Second function will not be invoked if the first returns a * false value. */export const both: Both = curryN(2, _both);