What are the ways in which JavaScript manages and protects objects?

This article mainly explains "what are the methods of JavaScript management and protection of objects". The content of the explanation is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "what are the methods of JavaScript management and protection of objects"?

Management object

/ / create an object based on an existing object

Object.create ()

/ / add or change object properties

Object.defineProperty (object, property, descriptor)

/ / add or change object properties

Object.defineProperties (object, descriptors)

/ / access attributes

Object.getOwnPropertyDescriptor (object, property)

/ / return all attributes in an array

Object.getOwnPropertyNames (object)

/ / access prototype

Object.getPrototypeOf (object)

/ / returns enumerable attributes as an array

Object.keys (object)

Protected object

/ / prevent attributes from being added to objects

Object.preventExtensions (object)

/ / return true if the attribute can be added to the object

Object.isExtensible (object)

/ / prevent object properties from being changed (not values)

Object.seal (object)

/ / return true if the object is sealed

Object.isSealed (object)

/ / prevent any changes to the object

Object.freeze (object)

/ / return true if the object is frozen

Object.isFrozen (object)

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