Learn ECMAScript - Second Edition

The new.target implicit parameter

The default value of new.target is undefined, but when a function is invoked as a constructor, the value of the new.target parameter depends on the following conditions:

• If a constructor is invoked using a new operator, then new.target points to this constructor
• If a constructor is invoked via the super keyword, then the value of new.target in it is the same as the value of new.target of the constructor that is called super.

Inside an arrow function, the value of new.target is the same as the value for the new.target of the surrounding non-arrow function.

Here is example code to demonstrate this:

function myConstructor() {     console.log(new.target.name); } class myClass extends myConstructor {  constructor() ...