Package Exports
- has-own-property-x
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Readme
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: 1.0.4
Author: Xotic750 Xotic750@gmail.com
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