A constructor in child class- need to execute the constructor in parent class before executing child class's constructor. It is done by calling the function "super ()". Even if there is no constructor ...

Use of the new keyword tells // JavaScript to create a new object and invoke Employee as its constructor. // The important thing to note is that Employee is NOT actually a class! It's // a regular ...

Lets talk about a constructor. it is actually a function to serve the purpose of using as a constructor. you can write a function to use it as a constructor or call it as a normal function, or use it ...

Functions created with the Function constructor are always created in the global scope. Creating functions through contructors is a bad practice because each method has to be created every time the ...