The execution of the code ceases once the constructor of the class is called

Why do objects created from a subclass that extends another class stop working after a constructor method is declared?

class test{
  
}

class test2 extends test {
  constructor(){ //this makes the alert(2); not working
  
  }
}

alert(1); //this works
var e = new test2(); //nothing after this works
alert(2); //this doesn't run

Answer â„–1

Ensure to invoke super() within the constructor:

class example extends parent {
  constructor(){ //calling super() is essential
    super(); 
  }
}

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