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constructor supports the following arguments:\n\n1. Optional: `items` (iterable): Initial key-value pairs for the Set.\n2. Optional: Object argument:\n    * `StrongSet` (class): Set this if you have a custom Set class you want to use for storing non-objects. Defaults to the built-in `Set`.\n    * `WeakSet` (class): Set this if you have a custom WeakSet class you want to use for storing objects. Defaults to the built-in `WeakSet`.\n\n### Methods\n\nInstances of this class have the following methods, which behave just like the corresponding methods on `Set` and `WeakSet`:\n\n* `has()`\n* `add()`\n* `delete()`\n* `clear()`\n\nInstances also have methods which only work on non-objects:\n\n* `entries()`\n* `forEach()`\n* `values()`\n\n## Example\n\n```javascript\n// Before\nconst set1 = new WeakSet()\nset1.add({})\nset1.add('test') // Uncaught TypeError: Invalid value used in weak set\n\n// After\nconst WeakishSet = require('weakish-set')\nconst set2 = new WeakishSet()\nset2.add({})\nset2.add('test')\n```\n\n## Related\n\n* [weakish-map](https://github.com/lamansky/weakish-map)\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Flamansky%2Fweakish-set","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Flamansky%2Fweakish-set","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Flamansky%2Fweakish-set/lists"}