What is the use of constructor() in a class

Q: What is the use of constructor() in a class

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. A constructor can use the super keyword to call the constructor of the super class. If you don't provide your own constructor, then a default constructor will be supplied for you. If your class is a base class, the default constructor is empty: constructor() {} If your class is a derived class, the default constructor calls the parent constructor, passing along any arguments that were provided: constructor(...args) { super(...args); }

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Accepted Answer

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. A constructor can use the super keyword to call the constructor of the super class. If you don't provide your own constructor, then a default constructor will be supplied for you. If your class is a base class, the default constructor is empty:


constructor() {}

If your class is a derived class, the default constructor calls the parent constructor, passing along any arguments that were provided:

constructor(...args) {
  super(...args);
}