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JavaScript Object-Oriented JavaScript (2015) Constructor Functions and Prototypes Adding a Prototype

Anusha Singh
PLUS
Anusha Singh
Courses Plus Student 22,106 Points
Posted by Anusha Singh
Anusha Singh
Courses Plus Student 22,106 Points

Can you help me with this??

I typed this but it still isn't working function Monster(name) { this.name = name; this.health = 100;

} Monster.prototype.Damage= function() { this.health--; }

monster.js 
function Monster(name) {
  this.name = name;
  this.health = 100;

}
Monster.prototype.Damage= function() {
    this.health--;
  }

2 Answers

alastair cooper
alastair cooper
30,617 Points
alastair cooper
alastair cooper
30,617 Points

call the function 'takeDamage' instead of 'Damage'

Matthew Furness
Matthew Furness
7,657 Points
Matthew Furness
Matthew Furness
7,657 Points

How are you calling the Damage function?

You need to call it on an instance of the Monster object which you'd create like this

var fred = new Monster("fred");

you'd then call the function by doing

fred.Damage();

I've just run the code in the console and fred's health after the function call is 99 as you would expect so your code is right. You just need to make sure you're calling the function properly.