The js.lib.Object constructor creates an object wrapper.
Documentation Object by Mozilla Contributors, licensed under CC-BY-SA 2.5.
Static variables
staticread onlyprototype:ObjectPrototype
Allows the addition of properties to all objects of type Object.
Static methods
staticassign<TSource, TDest>(target:TSource, sources:Rest<{}>):TDest
The Object.assign() method is used to copy the values of all enumerable own properties from one or more source objects to a target object. It will return the target object.
Note: this is an ES2015 feature
See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign
staticcreate<T>(proto:Null<{}>, ?propertiesObject:DynamicAccess<ObjectPropertyDescriptor<Any>>):T
The Object.create() method create a new object, using an existing object to provide the newly created object's proto . (see browser console for visual evidence.)
See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/create
staticdefineProperties<T>(obj:T, props:DynamicAccess<ObjectPropertyDescriptor<Any>>):T
The Object.defineProperties() method defines new or modifies existing properties directly on an object, returning the object.
See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/defineProperties
staticdefineProperty<T, TProp>(obj:T, prop:String, descriptor:ObjectPropertyDescriptor<TProp>):T
staticdefineProperty<T, TProp>(obj:T, prop:Symbol, descriptor:ObjectPropertyDescriptor<TProp>):T
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 https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/defineProperty
staticentries<T>(obj:T):Array<ObjectEntry>
The Object.entries() method returns an array of a given object's own enumerable property [key, value] pairs, in the same order as that provided by a for...in loop (the difference being that a for-in loop enumerates properties in the prototype chain as well).
Note: this is an ES2017 feature
See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/entries
staticfreeze<T>(obj:T):T
The Object.freeze() method freezes an object: that is, prevents new properties from being added to it; prevents existing properties from being removed; and prevents existing properties, or their enumerability, configurability, or writability, from being changed, it also prevents the prototype from being changed. The method returns the passed object.
See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/freeze
staticfromEntries<T>(iterable:Any):T
Returns a new object from an iterable of key-value pairs (reverses Object.entries).
staticgetOwnPropertyDescriptor<T, TProp>(obj:T, prop:String):Null<ObjectPropertyDescriptor<TProp>>
staticgetOwnPropertyDescriptor(obj:String, prop:Symbol):Null<ObjectPropertyDescriptor<String>>
staticgetOwnPropertyDescriptor(obj:String, prop:String):Null<ObjectPropertyDescriptor<String>>
staticgetOwnPropertyDescriptor<T>(target:Array<T>, propertyKey:Int):Null<ObjectPropertyDescriptor<T>>
staticgetOwnPropertyDescriptor<T, TProp>(obj:T, prop:Symbol):Null<ObjectPropertyDescriptor<TProp>>
The Object.getOwnPropertyDescriptor() method returns a property descriptor for an own property (that is, one directly present on an object and not in the object's prototype chain) of a given object.
In ES5, if the first argument to this method is not an object (a primitive), then it will cause a TypeError. In ES2015, a non-object first argument will be coerced to an object at first.
See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/getOwnPropertyDescriptor
staticgetOwnPropertyDescriptors<T>(obj:T):DynamicAccess<ObjectPropertyDescriptor<Any>>
staticgetOwnPropertyDescriptors(target:String):DynamicAccess<ObjectPropertyDescriptor<String>>
staticgetOwnPropertyDescriptors<T>(target:Array<T>):DynamicAccess<ObjectPropertyDescriptor<T>>
The Object.getOwnPropertyDescriptors() method returns all own property descriptors of a given object.
See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/getOwnPropertyDescriptors
staticgetOwnPropertyNames<T>(obj:T):Array<String>
The Object.getOwnPropertyNames() method returns an array of all properties (including non-enumerable properties except for those which use Symbol) found directly upon a given object.
See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/getOwnPropertyNames
staticgetOwnPropertySymbols<T>(obj:T):Array<Symbol>
The Object.getOwnPropertySymbols() method returns an array of all symbol properties found directly upon a given object.
Note: this is an ES2015 feature
See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/getOwnPropertySymbols
staticgetPrototypeOf<T, TProto>(obj:T):TProto
The Object.getPrototypeOf() method returns the prototype (i.e. the value of the internal [[Prototype]] property) of the specified object.
See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/getPrototypeOf
staticis<T>(obj1:T, obj2:T):Bool
The Object.is() method determines whether two values are the same value.
Note: this is an ES2015 feature
See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is
staticisExtensible<T>(obj:T):Bool
The Object.isExtensible() method determines if an object is extensible (whether it can have new properties added to it).
See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/isExtensible
staticisFrozen<T>(obj:T):Bool
The Object.isFrozen() determines if an object is frozen.
See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/isFrozen
staticisSame<T>(obj1:T, obj2:T):Bool
The Object.is() method determines whether two values are the same value.
Note: this is an ES2015 feature
See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is
staticisSealed<T>(obj:T):Bool
The Object.isSealed() method determines if an object is sealed.
See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/isSealed
statickeys<T>(obj:T):Array<String>
The Object.keys() method returns an array of a given object's own enumerable properties, in the same order as that provided by a for...in loop (the difference being that a for-in loop enumerates properties in the prototype chain as well).
See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/keys
staticpreventExtensions<T>(obj:T):T
The Object.preventExtensions() method prevents new properties from ever being added to an object (i.e. prevents future extensions to the object).
See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/preventExtensions
staticseal<T>(obj:T):T
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 https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/seal
staticsetPrototypeOf<T, TProto>(obj:T, proto:Null<TProto>):T
The Object.setPrototypeOf() method sets the prototype (i.e., the internal [[Prototype]] property) of a specified object to another object or null.
Note: this is an ES2015 feature
See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/setPrototypeOf
staticvalues<T>(obj:T):Array<Any>
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 difference being that a for-in loop enumerates properties in the prototype chain as well).
Note: this is an ES2017 feature
See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/values