"Fossies" - the Fresh Open Source Software Archive

Member "Atom/resources/app/apm/node_modules/es6-weak-map/is-weak-map.js" (11 Apr 2017, 379 Bytes) of package /windows/misc/atom-windows.zip:


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    1 'use strict';
    2 
    3 var toStringTagSymbol = require('es6-symbol').toStringTag
    4 
    5   , toString = Object.prototype.toString
    6   , id = '[object WeakMap]'
    7   , Global = (typeof WeakMap === 'undefined') ? null : WeakMap;
    8 
    9 module.exports = function (x) {
   10     return (x && ((Global && (x instanceof Global)) ||
   11             (toString.call(x) === id) || (x[toStringTagSymbol] === 'WeakMap'))) ||
   12             false;
   13 };