bdde081050
Added test to ensure that release notes are parsed properly Updated to latest dependencies to fix security vulnerability Updated GH Actions Workflow to run test before updating tag Updated README.md to reflect proper whatsnew documentation.
43 lines
1.7 KiB
JavaScript
43 lines
1.7 KiB
JavaScript
'use strict';
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/* eslint complexity: [2, 18], max-statements: [2, 33] */
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module.exports = function hasSymbols() {
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if (typeof Symbol !== 'function' || typeof Object.getOwnPropertySymbols !== 'function') { return false; }
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if (typeof Symbol.iterator === 'symbol') { return true; }
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var obj = {};
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var sym = Symbol('test');
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var symObj = Object(sym);
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if (typeof sym === 'string') { return false; }
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if (Object.prototype.toString.call(sym) !== '[object Symbol]') { return false; }
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if (Object.prototype.toString.call(symObj) !== '[object Symbol]') { return false; }
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// temp disabled per https://github.com/ljharb/object.assign/issues/17
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// if (sym instanceof Symbol) { return false; }
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// temp disabled per https://github.com/WebReflection/get-own-property-symbols/issues/4
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// if (!(symObj instanceof Symbol)) { return false; }
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// if (typeof Symbol.prototype.toString !== 'function') { return false; }
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// if (String(sym) !== Symbol.prototype.toString.call(sym)) { return false; }
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var symVal = 42;
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obj[sym] = symVal;
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for (sym in obj) { return false; } // eslint-disable-line no-restricted-syntax
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if (typeof Object.keys === 'function' && Object.keys(obj).length !== 0) { return false; }
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if (typeof Object.getOwnPropertyNames === 'function' && Object.getOwnPropertyNames(obj).length !== 0) { return false; }
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var syms = Object.getOwnPropertySymbols(obj);
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if (syms.length !== 1 || syms[0] !== sym) { return false; }
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if (!Object.prototype.propertyIsEnumerable.call(obj, sym)) { return false; }
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if (typeof Object.getOwnPropertyDescriptor === 'function') {
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var descriptor = Object.getOwnPropertyDescriptor(obj, sym);
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if (descriptor.value !== symVal || descriptor.enumerable !== true) { return false; }
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}
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return true;
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};
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