JavaScript class

Object() constructor The Object constructor creates an object wrapper for the given value . If the value is null or undefined , it will create and return an empty object. Otherwise, it will return an object of a Type that corresponds to the given value. If the value is an object already, it will return the value.

You can’t have multiple constructors , but you can use destructuring and default values to do what you want.

If you don’t define a constructor for the class, a default one is created. The default constructor is an empty function, which doesn’t modify the instance. At the same time, a JavaScript class can have up to one constructor .

The constructor method is a special method for creating and initializing an object created with a class . There can only be one special method with the name “constructor” in a class. A SyntaxError will be thrown if the class contains more than one occurrence of a constructor method.18 Şub 2022

In JavaScript, a constructor function is used to create objects . For example, // constructor function function Person () { this.name = ‘John’, this. age = 23 } // create an object const person = new Person(); In the above example, function Person() is an object constructor function.