A robust, ES3 compatible, "has own property" predicate.
```js const assert = require('assert'); const hasOwn = require('hasown');
assert.equal(hasOwn({}, 'toString'), false); assert.equal(hasOwn([], 'length'), true); assert.equal(hasOwn({ a: 42 }, 'a'), true); ```
Simply clone the repo, npm install
, and run npm test