CODEWITHSUNDEEP
javascript
A. Meshu
A. Meshu

Reputation: 4148

Random object in javascript

I'm trying to write script that will show random question. I can't figure out how to do that.

This is my NOT WORKING ( = doesn't write anything on the element) code:

function theQ(quest, ans) { // question constructor
  this.question = quest;
  this.answer = ans;
}
var quest1 = new theQ("1+1", "2"); // object 1
var quest2 = new theQ("2+2", "4"); // object 2
var container = document.getElementById("rendomQuestion"); // display
var randomNumber = Math.random(); // randomize 
var numQuestion = Math.floor(randomNumber * theQ.length); // between theQ number of objects
container.innerHTML += quest+numQuestion.question; // write the chosen question.

Please tell me what am i doing wrong here..

Edit - this is my HTML:

<p id="rendomQuestion"></p>

Upvotes: 0

Views: 111

Answers (1)

trincot
trincot

Reputation: 350310

You should use an array (of two questions):

function theQ(quest, ans) { // question constructor
  this.question = quest;
  this.answer = ans;
}
// *** Make it an array:
var quests = [new theQ("1+1", "2"),
              new theQ("2+2", "4")];
var container = document.getElementById("rendomQuestion");
var randomNumber = Math.random();
var numQuestion = Math.floor(randomNumber * theQ.length);
// *** Now use array notation:
container.textContent = quests[numQuestion].question;
<p id="rendomQuestion"></p>

Upvotes: 2

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