/** * @license Apache-2.0 * * Copyright (c) 2018 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. */ 'use strict'; // MODULES // var isFunction = require( '@stdlib/assert/is-function' ); // MAIN // /** * Returns a function that invokes a provided function with arguments in reverse order. * * @param {Function} fcn - input function * @param {*} [thisArg] - function context * @throws {TypeError} first argument must be a function * @returns {Function} reverse arguments function * * @example * function foo( a, b, c ) { * return [ a, b, c ]; * } * * var bar = reverseArguments( foo ); * * var out = bar( 1, 2, 3 ); * // returns [ 3, 2, 1 ] */ function reverseArguments( fcn, thisArg ) { if ( !isFunction( fcn ) ) { throw new TypeError( 'invalid argument. First argument must be a function. Value: `'+fcn+'`.' ); } return reversed; /** * Invokes a function with arguments in reverse order. * * @private * @param {...*} args - arguments * @returns {*} return value */ function reversed() { var args; var len; var i; len = arguments.length; args = new Array( len ); for ( i = 0; i < len; i++ ) { args[ len-1-i ] = arguments[ i ]; } return fcn.apply( thisArg, args ); } } // EXPORTS // module.exports = reverseArguments;