BJ_web_developers / dyitoc

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node_modules/es6-weak-map/test/is-implemented.js 320 Bytes
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aaac7fed   liuqimichale   add 
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  'use strict';
  
  var global   = require('es5-ext/global')
    , polyfill = require('../polyfill');
  
  module.exports = function (t, a) {
  	var cache;
  	a(typeof t(), 'boolean');
  	cache = global.WeakMap;
  	global.WeakMap = polyfill;
  	a(t(), true);
  	if (cache === undefined) delete global.WeakMap;
  	else global.WeakMap = cache;
  };