@stdlib/utils/if-then/docs/types/index.d.ts

Standard utilities.

/*
* @license Apache-2.0
*
* Copyright (c) 2019 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*    http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

// TypeScript Version: 4.1

/**
* If a condition is truthy, invokes `x`; otherwise, invokes `y`.
*
* @param bool - condition
* @param x - function to invoke if a condition is truthy
* @param y - function to invoke if a condition is falsy
* @returns return value of either `x` or `y`
*
* @example
* var randu = require( '@stdlib/random/base/randu' );
*
* function x() {
*     return randu() * 100.0;
* }
*
* function y() {
*     return -1.0 * randu() * 100.0;
* }
*
* var z = ifthen( randu() > 0.5, x, y );
* // returns <number>
*/
declare function ifthen<T, U>( bool: boolean, x: () => T, y: () => U ): T | U;


// EXPORTS //

export = ifthen;