main.js (1520B)
1 /** 2 * @license Apache-2.0 3 * 4 * Copyright (c) 2018 The Stdlib Authors. 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 'use strict'; 20 21 // MODULES // 22 23 var modes = require( './../../../../casting-modes' ); 24 25 26 // VARIABLES // 27 28 var MODES = modes(); 29 var len = MODES.length; 30 31 32 // MAIN // 33 34 /** 35 * Tests whether an input value is a supported ndarray casting mode. 36 * 37 * @param {*} v - value to test 38 * @returns {boolean} boolean indicating whether an input value is a supported ndarray casting mode 39 * 40 * @example 41 * var bool = isCastingMode( 'none' ); 42 * // returns true 43 * 44 * bool = isCastingMode( 'equiv' ); 45 * // returns true 46 * 47 * bool = isCastingMode( 'safe' ); 48 * // returns true 49 * 50 * bool = isCastingMode( 'same-kind' ); 51 * // returns true 52 * 53 * bool = isCastingMode( 'unsafe' ); 54 * // returns true 55 * 56 * bool = isCastingMode( 'foo' ); 57 * // returns false 58 */ 59 function isCastingMode( v ) { 60 var i; 61 for ( i = 0; i < len; i++ ) { 62 if ( v === MODES[ i ] ) { 63 return true; 64 } 65 } 66 return false; 67 } 68 69 70 // EXPORTS // 71 72 module.exports = isCastingMode;