The static Reflect.deleteProperty() method allows to delete properties. It is like the delete operator as a function.

Syntax

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()

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 Latest Draft (ECMA-262)
The definition of 'Reflect.deleteProperty' in that specification.
Draft  

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support491242 No3610
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support4949 Yes423610 ?

See also

Document Tags and Contributors

 Last updated by: wbamberg,