| 'use strict'; | 
| var $ = require('../internals/export'); | 
| var call = require('../internals/function-call'); | 
| var toSetLike = require('../internals/to-set-like'); | 
| var $difference = require('../internals/set-difference'); | 
|   | 
| // `Set.prototype.difference` method | 
| // https://github.com/tc39/proposal-set-methods | 
| // TODO: Obsolete version, remove from `core-js@4` | 
| $({ target: 'Set', proto: true, real: true, forced: true }, { | 
|   difference: function difference(other) { | 
|     return call($difference, this, toSetLike(other)); | 
|   } | 
| }); |