akasha.core

Class JsObject

java.lang.Object

akasha.core.JsObject

@Generated(value="org.realityforge.webtack")
 @JsType(isNative=true,
        namespace="<global>",
        name="Object")
public class JsObject
extends java.lang.Object

The Object class represents one of JavaScript's data types. It is used to store various keyed collections and more complex entities. Objects can be created using the Object() constructor or the object initializer / literal syntax.

See Also:

Object - MDN, Object - ECMAScript (ECMA-262)

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	JsObject()

Method Summary

Modifier and Type	Method and Description
static JsObject	assign(JsObject target, JsObject... sources) The Object.assign() method copies all enumerable own properties from one or more source objects to a target object.
static JsObject	create(JsObject proto) The Object.create() method creates a new object, using an existing object as the prototype of the newly created object.
static JsObject	create(JsObject proto, jsinterop.base.JsPropertyMap<ObjectPropertyDescriptor> props) The Object.create() method creates a new object, using an existing object as the prototype of the newly created object.
static void	defineProperties(JsObject obj, jsinterop.base.JsPropertyMap<ObjectPropertyDescriptor> props) The Object.defineProperties() method defines new or modifies existing properties directly on an object, returning the object.
static void	defineProperty(JsObject obj, java.lang.String prop, ObjectPropertyDescriptor descriptor) The static method Object.defineProperty() defines a new property directly on an object, or modifies an existing property on an object, and returns the object.
static void	defineProperty(JsObject obj, Symbol prop, ObjectPropertyDescriptor descriptor) The static method Object.defineProperty() defines a new property directly on an object, or modifies an existing property on an object, and returns the object.
static JsArray<ObjectPropertyEntry>	entries(JsObject obj) The Object.entries() method returns an array of a given object's own enumerable string-keyed property [key, value] pairs, in the same order as that provided by a for...in loop.
static void	freeze(JsObject obj) The Object.freeze() method freezes an object.
static JsObject	fromEntries(JsIterable<ObjectPropertyEntry> iterable) The Object.fromEntries() method transforms a list of key-value pairs into an object.
static ObjectPropertyDescriptor	getOwnPropertyDescriptor(JsObject obj, java.lang.String prop) The Object.getOwnPropertyDescriptor() method returns an object describing the configuration of a specific property on a given object (that is, one directly present on an object and not in the object's prototype chain).
static ObjectPropertyDescriptor	getOwnPropertyDescriptor(JsObject obj, Symbol prop) The Object.getOwnPropertyDescriptor() method returns an object describing the configuration of a specific property on a given object (that is, one directly present on an object and not in the object's prototype chain).
static JsArray<ObjectPropertyDescriptor>	getOwnPropertyDescriptors(JsObject obj) The Object.getOwnPropertyDescriptors() method returns all own property descriptors of a given object.
static JsArray<java.lang.String>	getOwnPropertyNames(JsObject obj) The Object.getOwnPropertyNames() method returns an array of all properties (including non-enumerable properties except for those which use Symbol) found directly in a given object.
static JsArray<Symbol>	getOwnPropertySymbols(JsObject obj) The Object.getOwnPropertySymbols() method returns an array of all symbol properties found directly upon a given object.
static JsObject	getPrototypeOf(JsObject obj) The Object.getPrototypeOf() method returns the prototype (i.e.
static boolean	is(JsObject value1, JsObject value2) The Object.is() method determines whether two values are the same value.
static boolean	isExtensible(JsObject obj) The Object.isExtensible() method determines if an object is extensible (whether it can have new properties added to it).
static boolean	isFrozen(JsObject obj) The Object.isFrozen() determines if an object is frozen.
static boolean	isSealed(JsObject obj) The Object.isSealed() method determines if an object is sealed.
static JsArray<java.lang.String>	keys(JsObject obj) The Object.keys() method returns an array of a given object's own enumerable property names, iterated in the same order that a normal loop would.
static void	preventExtensions(JsObject obj) The Object.preventExtensions() method prevents new properties from ever being added to an object (i.e.
static void	seal(JsObject obj) The Object.seal() method seals an object, preventing new properties from being added to it and marking all existing properties as non-configurable.
static void	setPrototypeOf(JsObject obj, JsObject prototype) The Object.setPrototypeOf() method sets the prototype (i.e., the internal [[Prototype]] property) of a specified object to another object or null.
static JsArray<jsinterop.base.Any>	values(JsObject obj) The Object.values() method returns an array of a given object's own enumerable property values, in the same order as that provided by a for...in loop.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

JsObject

protected JsObject()

Method Detail

assign

@Nonnull
public static JsObject assign(@Nonnull
                                       JsObject target,
                                       @Nonnull
                                       JsObject... sources)

The Object.assign() method copies all enumerable own properties from one or more source objects to a target object. It returns the target object.

See Also:

Object.assign - MDN, Object.assign - ECMAScript (ECMA-262)

create

@Nonnull
public static JsObject create(@Nullable
                                       JsObject proto,
                                       @Nullable
                                       jsinterop.base.JsPropertyMap<ObjectPropertyDescriptor> props)

The Object.create() method creates a new object, using an existing object as the prototype of the newly created object.

See Also:

Object.create - MDN, Object.create - ECMAScript (ECMA-262)

create

@Nonnull
public static JsObject create(@Nullable
                                       JsObject proto)

The Object.create() method creates a new object, using an existing object as the prototype of the newly created object.

See Also:

Object.create - MDN, Object.create - ECMAScript (ECMA-262)

defineProperties

public static void defineProperties(@Nonnull
                                    JsObject obj,
                                    @Nonnull
                                    jsinterop.base.JsPropertyMap<ObjectPropertyDescriptor> props)

The Object.defineProperties() method defines new or modifies existing properties directly on an object, returning the object.

See Also:

Object.defineProperties - MDN, Object.defineProperties - ECMAScript (ECMA-262)

defineProperty

public static void defineProperty(@Nonnull
                                  JsObject obj,
                                  @Nonnull
                                  java.lang.String prop,
                                  @Nonnull
                                  ObjectPropertyDescriptor descriptor)

The static method Object.defineProperty() defines a new property directly on an object, or modifies an existing property on an object, and returns the object.

See Also:

Object.defineProperty - MDN, Object.defineProperty - ECMAScript (ECMA-262)

defineProperty

public static void defineProperty(@Nonnull
                                  JsObject obj,
                                  @Nonnull
                                  Symbol prop,
                                  @Nonnull
                                  ObjectPropertyDescriptor descriptor)

The static method Object.defineProperty() defines a new property directly on an object, or modifies an existing property on an object, and returns the object.

See Also:

Object.defineProperty - MDN, Object.defineProperty - ECMAScript (ECMA-262)

entries

@Nonnull
public static JsArray<ObjectPropertyEntry> entries(@Nonnull
                                                            JsObject obj)

The Object.entries() method returns an array of a given object's own enumerable string-keyed property [key, value] pairs, in the same order as that provided by a for...in loop. (The only important difference is that a for...in loop enumerates properties in the prototype chain as well).

See Also:

Object.entries - MDN, Object.entries - ECMAScript (ECMA-262)

freeze

public static void freeze(@Nonnull
                          JsObject obj)

The Object.freeze() method freezes an object. A frozen object can no longer be changed; freezing an object prevents new properties from being added to it, existing properties from being removed, prevents changing the enumerability, configurability, or writability of existing properties, and prevents the values of existing properties from being changed. In addition, freezing an object also prevents its prototype from being changed. freeze() returns the same object that was passed in.

See Also:

Object.freeze - MDN, Object.freeze - ECMAScript (ECMA-262)

fromEntries

@Nonnull
public static JsObject fromEntries(@Nonnull
                                            JsIterable<ObjectPropertyEntry> iterable)

The Object.fromEntries() method transforms a list of key-value pairs into an object.

See Also:

Object.fromEntries - MDN, Object.fromEntries - ECMAScript (ECMA-262)

getOwnPropertyDescriptor

@Nullable
public static ObjectPropertyDescriptor getOwnPropertyDescriptor(@Nonnull
                                                                          JsObject obj,
                                                                          @Nonnull
                                                                          java.lang.String prop)

The Object.getOwnPropertyDescriptor() method returns an object describing the configuration of a specific property on a given object (that is, one directly present on an object and not in the object's prototype chain). The object returned is mutable but mutating it has no effect on the original property's configuration.

See Also:

Object.getOwnPropertyDescriptor - MDN, Object.getOwnPropertyDescriptor - ECMAScript (ECMA-262)

getOwnPropertyDescriptor

@Nullable
public static ObjectPropertyDescriptor getOwnPropertyDescriptor(@Nonnull
                                                                          JsObject obj,
                                                                          @Nonnull
                                                                          Symbol prop)

The Object.getOwnPropertyDescriptor() method returns an object describing the configuration of a specific property on a given object (that is, one directly present on an object and not in the object's prototype chain). The object returned is mutable but mutating it has no effect on the original property's configuration.

See Also:

Object.getOwnPropertyDescriptor - MDN, Object.getOwnPropertyDescriptor - ECMAScript (ECMA-262)

getOwnPropertyDescriptors

@Nonnull
public static JsArray<ObjectPropertyDescriptor> getOwnPropertyDescriptors(@Nonnull
                                                                                   JsObject obj)

The Object.getOwnPropertyDescriptors() method returns all own property descriptors of a given object.

See Also:

Object.getOwnPropertyDescriptors - MDN, Object.getOwnPropertyDescriptors - ECMAScript (ECMA-262)

getOwnPropertyNames

@Nonnull
public static JsArray<java.lang.String> getOwnPropertyNames(@Nonnull
                                                                     JsObject obj)

The Object.getOwnPropertyNames() method returns an array of all properties (including non-enumerable properties except for those which use Symbol) found directly in a given object.

See Also:

Object.getOwnPropertyNames - MDN, Object.getOwnPropertyNames - ECMAScript (ECMA-262)

getOwnPropertySymbols

@Nonnull
public static JsArray<Symbol> getOwnPropertySymbols(@Nonnull
                                                             JsObject obj)

The Object.getOwnPropertySymbols() method returns an array of all symbol properties found directly upon a given object.

See Also:

Object.getOwnPropertySymbols - MDN, Object.getOwnPropertySymbols - ECMAScript (ECMA-262)

getPrototypeOf

@Nullable
public static JsObject getPrototypeOf(@Nonnull
                                                JsObject obj)

The Object.getPrototypeOf() method returns the prototype (i.e. the value of the internal [[Prototype]] property) of the specified object.

See Also:

Object.getPrototypeOf - MDN, Object.getPrototypeOf - ECMAScript (ECMA-262)

is

public static boolean is(@Nonnull
                         JsObject value1,
                         @Nonnull
                         JsObject value2)

The Object.is() method determines whether two values are the same value.

See Also:

Object.is - MDN, Object.is - ECMAScript (ECMA-262)

isExtensible

public static boolean isExtensible(@Nonnull
                                   JsObject obj)

The Object.isExtensible() method determines if an object is extensible (whether it can have new properties added to it).

See Also:

Object.isExtensible - MDN, Object.isExtensible - ECMAScript (ECMA-262)

isFrozen

public static boolean isFrozen(@Nonnull
                               JsObject obj)

The Object.isFrozen() determines if an object is frozen.

See Also:

Object.isFrozen - MDN, Object.isFrozen - ECMAScript (ECMA-262)

isSealed

public static boolean isSealed(@Nonnull
                               JsObject obj)

The Object.isSealed() method determines if an object is sealed.

See Also:

Object.isSealed - MDN, Object.isSealed - ECMAScript (ECMA-262)

keys

@Nonnull
public static JsArray<java.lang.String> keys(@Nonnull
                                                      JsObject obj)

The Object.keys() method returns an array of a given object's own enumerable property names, iterated in the same order that a normal loop would.

See Also:

Object.keys - MDN, Object.keys - ECMAScript (ECMA-262)

preventExtensions

public static void preventExtensions(@Nonnull
                                     JsObject obj)

The Object.preventExtensions() method prevents new properties from ever being added to an object (i.e. prevents future extensions to the object).

See Also:

Object.preventExtensions - MDN, Object.preventExtensions - ECMAScript (ECMA-262)

seal

public static void seal(@Nonnull
                        JsObject obj)

The Object.seal() method seals an object, preventing new properties from being added to it and marking all existing properties as non-configurable. Values of present properties can still be changed as long as they are writable.

See Also:

Object.seal - MDN, Object.seal - ECMAScript (ECMA-262)

setPrototypeOf

public static void setPrototypeOf(@Nonnull
                                  JsObject obj,
                                  @Nonnull
                                  JsObject prototype)

The Object.setPrototypeOf() method sets the prototype (i.e., the internal [[Prototype]] property) of a specified object to another object or null.

See Also:

Object.setPrototypeOf - MDN, Object.setPrototypeOf - ECMAScript (ECMA-262)

values

@Nonnull
public static JsArray<jsinterop.base.Any> values(@Nonnull
                                                          JsObject obj)

The Object.values() method returns an array of a given object's own enumerable property values, in the same order as that provided by a for...in loop. (The only difference is that a for...in loop enumerates properties in the prototype chain as well.)

See Also:

Object.values - MDN, Object.values - ECMAScript (ECMA-262)