CODE EXAMPLE FOR JAVASCRIPT

prototype in javascript

//every object has internal property call prototype.
//prototype is simple reference to another object that
//contain common attributes and methods which will save memeory 
function Todo(name,completed){
this.name=name;
this.completed= completed;
}
Todo.prototype.getTodoName= function(){
console.log(this.name)
}

const todo= new Todo("Buy Eggs", false);
const todo2= new Todo("Learn javascript", false);
todo.getTodoName();
console.log(todo,todo2);
//at console getTodoName will be inside prototype which will save memeory