aaac7fed
 liuqimichale
add
|
1
2
3
4
5
6
7
8
|
// Exports true if environment provides native `WeakMap` implementation, whatever that is.
'use strict';
module.exports = (function () {
if (typeof WeakMap !== 'function') return false;
return (Object.prototype.toString.call(new WeakMap()) === '[object WeakMap]');
}());
|
