https://github.com/xotic750/has-own-property-x

Used to determine whether an object has an own property with the specified property key.
https://github.com/xotic750/has-own-property-x

browser ecmascript hasownproperty nodejs

Last synced: 2 months ago
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Used to determine whether an object has an own property with the specified property key.

• Host: GitHub
• URL: https://github.com/xotic750/has-own-property-x
• Owner: Xotic750
• License: mit
• Created: 2015-12-03T21:18:22.000Z (about 9 years ago)
• Default Branch: master
• Last Pushed: 2023-01-04T21:54:47.000Z (about 2 years ago)
• Last Synced: 2024-04-25T19:21:23.151Z (9 months ago)
• Topics: browser, ecmascript, hasownproperty, nodejs
• Language: JavaScript
• Homepage:
• Size: 3.49 MB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 20
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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## has-own-property-x

Used to determine whether an object has an own property with the specified property key.



### `module.exports(object, property)` ⇒ boolean ⏏

The `hasOwnProperty` method returns a boolean indicating whether

the `object` has the specified `property`. Does not attempt to fix known

issues in older browsers, but does ES6ify the method.

**Kind**: Exported function  

**Returns**: boolean - `true` if the property is set on `object`, else `false`.  

**Throws**:

- TypeError If object is null or undefined.

| Param    | Type                                       | Description                                 |

| -------- | ------------------------------------------ | ------------------------------------------- |

| object   | Object                        | The object to test.                         |

| property | string \| Symbol | The name or Symbol of the property to test. |

**Example**

```js

import hasOwnProperty from 'has-own-property-x';

const o = {

  foo: 'bar',

};

console.log(hasOwnProperty(o, 'bar')); // false

console.log(hasOwnProperty(o, 'foo')); // true

hasOwnProperty(undefined, 'foo'); // TypeError: Cannot convert undefined or null to object

```