Reflect.deleteProperty()
The static Reflect
.deleteProperty()
method allows to delete properties. It is like the delete
operator as a function.
Syntax
JavaScript
Copy Code
Reflect.deleteProperty(target, propertyKey)
Parameters
target
- The target object on which to delete the property.
propertyKey
- The name of the property to be deleted.
Return value
A Boolean
indicating whether or not the property was successfully deleted.
Exceptions
A TypeError
, if target
is not an Object
.
Description
The Reflect.deleteProperty
method allows you to delete a property on an object. It returns a Boolean
indicating whether or not the property was successfully deleted. It is almost identical to the non-strict delete
operator.
Examples
Using Reflect.deleteProperty()
JavaScript
Copy Code
var obj = { x: 1, y: 2 }; Reflect.deleteProperty(obj, "x"); // true obj; // { y: 2 } var arr = [1, 2, 3, 4, 5]; Reflect.deleteProperty(arr, "3"); // true arr; // [1, 2, 3, , 5] // Returns true if no such property exists Reflect.deleteProperty({}, "foo"); // true // Returns false if a property is unconfigurable Reflect.deleteProperty(Object.freeze({foo: 1}), "foo"); // false
Specifications
Specification | Status | Comment |
---|---|---|
ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'Reflect.deleteProperty' in that specification. |
Standard | Initial definition. |
ECMAScript 2017 Draft (ECMA-262) The definition of 'Reflect.deleteProperty' in that specification. |
Draft |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|
Basic support | 49 | 42 (42) | No support | No support | No support |
Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|
Basic support | No support | No support | 42.0 (42) | No support | No support | No support |
See also
License
© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/javascript/reference/global_objects/reflect/deleteproperty