weak-map-basic-detection.js 222 B

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  1. 'use strict';
  2. var global = require('../internals/global');
  3. var isCallable = require('../internals/is-callable');
  4. var WeakMap = global.WeakMap;
  5. module.exports = isCallable(WeakMap) && /native code/.test(String(WeakMap));