36 lines
6.2 KiB
JavaScript
36 lines
6.2 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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var _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"]) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }; }(); /**
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* Copyright (c) 2017-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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exports.default = function (realm) {
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// ECMA262 18.2.3
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return new _index.NativeFunctionValue(realm, "isNaN", "isNaN", 1, function (context, _ref) {
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var _ref2 = _slicedToArray(_ref, 1),
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number = _ref2[0];
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// 1. Let num be ? ToNumber(number).
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var num = _singletons.To.ToNumber(realm, number);
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// 2. If num is NaN, return true.
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if (isNaN(num)) return realm.intrinsics.true;
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// 3. Otherwise, return false.
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return realm.intrinsics.false;
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}, false);
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};
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var _index = require("../../values/index.js");
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var _singletons = require("../../singletons.js");
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//# sourceMappingURL=isNaN.js.map
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