The Object.keys () method is a method for us to return the enumerable properties on an object to the array.
Object.isFrozen () is used to control whether an object is frozen. (An object is frozen by Object.freeze ()) Returns a boolean value that is true or incorrect.
Object.isExtensible () indicates whether to add new properties to an object and returns this result.
Object.is () checks whether the two values are of the same value.
The Object.getPrototypeOf () method returns the prototype of an independent variable (that is, the value of the internal [[Prototype]] property).
The Object.getOwnPropertySymbols () method returns all the symbol properties that are located on a particular object.
Object.getOwnPropertyNames () returns the names of an object's properties as an array.
Why Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor () returns a property identifier for the specified property of the specified object. This method allows examination of the precise definition of a property. A property […]
Object.freeze() is used for freezing objects and arrays. Object.freeze() is used to make an object immutable.
The Object.entries () method is used to rotate the array of [key,values] entered as parameters. The ordering of the properties is the same as that given by looping over the property values of the object manually.
Why Object.defineProperty ? The Object.defineProperty () method allows for the precise addition or modification of a property in an object. By default, values added using Object.defineProperty () do not change. […]
Object.defineProperties () creates or configures properties that are named and described by identifiers in the object. The names of the identifiers are property-generating objects that specify the properties of the properties to be created or the properties of the properties to be configured.
If the properties in the target object have the same key, the resources will be overwritten. Then the characteristics of the resources will similarly overwrite the previous ones.
The setters are functions or methods used to assign variables. The setter concept is common in computer programming: almost all high-end programming languages, including JS, come with a syntax for the setter.