has-own-property-x

has-own-property-x

hasOwnProperty module.

ECMAScript compatibility shims for legacy JavaScript engines

`es5-shim.js` monkey-patches a JavaScript context to contain all EcmaScript 5 methods that can be faithfully emulated with a legacy JavaScript engine.

es5-sham.js monkey-patches other ES5 methods as closely as possible. For these methods, as closely as possible to ES5 is not very close. Many of these shams are intended only to allow code to be written to ES5 without causing run-time errors in older engines. In many cases, this means that these shams cause many ES5 methods to silently fail. Decide carefully whether this is what you want. Note: es5-sham.js requires es5-shim.js to be able to work properly.

json3.js monkey-patches the EcmaScript 5 JSON implimentation faithfully.

es6.shim.js provides compatibility shims so that legacy JavaScript engines behave as closely as possible to ECMAScript 6 (Harmony).

Version: 1.0.1
Author: Xotic750 [e-mail]
License: MIT
Copyright: Xotic750

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.

Param	Type	Description
object	Object	The object to test.
property	string | Symbol	The name or Symbol of the property to test.

Example

var hasOwnProperty = require('has-own-property-x');
var o = {
  foo: 'bar'
};
   }

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