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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x | /** * @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 mod = require( 'module' ); var contains = require( '@stdlib/assert/contains' ); var isString = require( '@stdlib/assert/is-string' ).isPrimitive; var BUILTINS = require( './builtins.json' ); // VARIABLES // var LIST = mod.builtinModules || BUILTINS; // MAIN // /** * Tests whether a string matches a Node.js built-in module name. * * @param {*} x - value to test * @returns {boolean} boolean indicating whether a string matches a Node.js built-in module name * * @example * var out = isNodeBuiltin( 'cluster' ); * // returns true * * @example * var out = isNodeBuiltin( 'crypto' ); * // returns true * * @example * var out = isNodeBuiltin( 'fs-extra' ); * // returns false * * @example * var out = isNodeBuiltin( '' ); * // returns false */ function isNodeBuiltin( x ) { if ( !isString( x ) ) { return false; } return contains( LIST, x ); } // EXPORTS // module.exports = isNodeBuiltin; |