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JavaScript Object-Oriented JavaScript (2015) Constructor Functions and Prototypes Methods with Prototypes

Posted by Tsitsi Moyo
Tsitsi Moyo
6,149 Points

Prototypes code

I am not sure of where my mistake is,I'm trying to add a new method to every instance when a monster is created using a prototype method.

function Monster(name) {
  this.name = name;
  this.health = 100;
  this.takeDamage
    this.health--;
    Monster.prototype.health = function (){
  }
}
LaVaughn Haynes
LaVaughn Haynes
12,397 Points
LaVaughn Haynes
LaVaughn Haynes
12,397 Points

I edited your question to display code correctly

2 Answers

LaVaughn Haynes
LaVaughn Haynes
12,397 Points
LaVaughn Haynes
LaVaughn Haynes
12,397 Points

you can do something like this

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

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

var dracula = new Monster('Dracula');

//100
console.log(dracula.health);

dracula.takeDamage();

//99
console.log(dracula.health);
Tsitsi Moyo
Tsitsi Moyo
6,149 Points
Tsitsi Moyo
Tsitsi Moyo
6,149 Points

Hi,thanks LaVaughn Haynes