CocoRoboDesktop/pdf1.js/node_modules/core-js/internals/symbol-constructor-detection.js

/* eslint-disable es/no-symbol -- required for testing */
var V8_VERSION = require('../internals/engine-v8-version');
var fails = require('../internals/fails');

// eslint-disable-next-line es/no-object-getownpropertysymbols -- required for testing
module.exports = !!Object.getOwnPropertySymbols && !fails(function () {
  var symbol = Symbol();
  // Chrome 38 Symbol has incorrect toString conversion
  // `get-own-property-symbols` polyfill symbols converted to object are not Symbol instances
  return !String(symbol) || !(Object(symbol) instanceof Symbol) ||
    // Chrome 38-40 symbols are not inherited from DOM collections prototypes to instances
    !Symbol.sham && V8_VERSION && V8_VERSION < 41;
});