javascript--Basic Knowledge--object

Object objects are the parent of all objects in JavaScript, and all of its methods and properties are available in all other objects. Provides functionality common to all JavaScript objects. Of course , these methods can be redefined in user-defined objects, and JavaScript will call these methods at the appropriate time.

Property:

	description
__proto__ Property	Specifies the prototype for the object. Only IE11 supports
constructor	Specifies the function that creates an object.
Prototype	Returns a reference to the prototype for the object's class.

Method:

Function	Describe
Object.create	Creates an object that has the specified prototype and optionally contains the specified property.
Object.defineproperties	Adds one or more properties to an object, and/or modifies the attributes of an existing property.
Object.defineproperty	Adds an attribute to an object or modifies an attribute of an existing property.
Object.freeze	Prevents modifying the attributes and values of existing properties and prevents the addition of new properties.
Object.getownpropertydescriptor	Returns the definition of a data property or accessor property.
Object.getownpropertynames	Returns the name of the object's properties and methods.
Object.getprototypeof	Returns the prototype of the object.
Object.isextensible	Returns a value that indicates whether a new property can be added to an object.
OBJECT.ISFROZEN 	true if Existing property attributes and values cannot is modified in an object and new properties cannot being added to the object. " If you cannot modify the attributes and values of an existing property in an object, and you cannot add a new property to the object, return   true.
Object.issealed	Returns true if the attributes of an existing property cannot be modified in the object, and a new property cannot be added to the object .
Object.keys	Returns the name of an enumerable property and method for an object.
Object.preventextensions	Prevents new properties from being added to the object.
Object.seal	Prevents the modification of attributes of existing properties and prevents the addition of new properties.

javascript--Basic Knowledge--object