功能开发

rk

4 天以前 fea8e0742ee241a94c5bbd4f452d6ad82cf4dd9c

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'use strict';
var globalThis = require('../internals/global-this');
var isCallable = require('../internals/is-callable');
 
var WeakMap = globalThis.WeakMap;
 
module.exports = isCallable(WeakMap) && /native code/.test(String(WeakMap));