Spaces:
Runtime error
Runtime error
| // Exports true if environment provides native `WeakMap` implementation, whatever that is. | |
| ; | |
| module.exports = (function () { | |
| if (typeof WeakMap !== "function") return false; | |
| return Object.prototype.toString.call(new WeakMap()) === "[object WeakMap]"; | |
| }()); | |