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JavaScript Object-Oriented JavaScript (2015) Constructor Functions and Prototypes Challenge Solution

Francis N
Francis N
10,376 Points
Posted by Francis N
Francis N
10,376 Points

Getting [object Object] after click 'Roll Dice'

I am looking over my code and it matches the solution yet I am getting different results. I think I need to change the result variable to something in ui.js but I am not sure what to change it to.

Here is my code:

function Dice(sides) {
  this.sides = sides;
  this.roll = function() {
    var randomNumber = Math.floor(Math.random() * this.sides) + 1;
    return randomNumber;
  }
}

var dice = new Dice(6);

inside ui.js: 

function printNumber(number) {
  var placeholder = document.getElementById("placeholder");
  placeholder.innerHTML = number;
}

var button = document.getElementById("button");

button.onclick = function() {
  var result = dice.roll();
  printNumber(result);
};
Chyno Deluxe
Chyno Deluxe
16,936 Points

//Fixed Code Presentation

2 Answers

Chyno Deluxe
Chyno Deluxe
16,936 Points

the variable dice is calling the Dice function with an argument of 6 Dice(6). When you click the button, It prints out the dice variable but because its an object. It prints out the object and not the results.

In order to get the result you would need to print the roll method dice.roll()

button.onclick = function() {
  var result = dice.roll();
  printNumber(result);
};

I hope this helps.

Francis N
Francis N
10,376 Points
Francis N
Francis N
10,376 Points

thanks that did help. i dont recall that being part of the challenge solution video.

Chyno Deluxe
Chyno Deluxe
16,936 Points

It's possible it might not be. haha! I completed the JavaScript track a few months ago. I gave my feedback based on the provided code.