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

Posted by bhtlujtvuv
bhtlujtvuv
9,969 Points

object-oriented javascript

Challenge Task 1 of 1

We're adding a new method to every instance when a Monster is created. Use a prototype instead for the takeDamage method.

Any suggestions?

1 Answer

Samuel Webb
Samuel Webb
25,370 Points
Samuel Webb
Samuel Webb
25,370 Points

He wants you to remove the takeDamage() function from the Monster() constructor function and put in its own prototype. The reason for this is so that the function won't be created multiple times when you create objects based on the constructor function. Your code should look like this:

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

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

With takeDamage() being a prototype, each object created from Monster() will only reference the prototype instead of creating the method multiple times. With larger projects this will help the code run much faster.