每次页面重新加载时，如何在javascript数组中输出随机字符串？

Question

I would like to have a page that when you reload it generates a random question. Here is my code so far:

 function questions() { var question = ["What's You name?", "What's your age?", "Do you like pizza?"]; var randomQuestion = truth[Math.floor(idea.length * Math.random())]; document.getElementById('outputQ').innerHTML = randomQuestion; } 

What HTML do I need to add in order to allow it to generate a random question every time the page is reloaded. I would like the output to be in a paragraph tag so I can add CSS classes.

Answer 1

 (function questions() { var question = ["Whats You name?", "Whats your age?", "Do you like pizza?"]; var i = Math.floor(Math.random()*3); document.getElementById('outputQ').innerHTML = question[i]; })(); 

 <p id='outputQ'></p> 

Answer 2

<script type="text/javascript">
var getAQuestion = function () {
  var questions = [
    "What's You name?",
    "What's your age?",
    "Do you like pizza?"
  ];
  return questions[Math.round(Math.random()*(questions.length-1))];
};
var question = getAQuestion(); console.log(question);
</script>

Answer 3

You get one random question, when you generate a number between 0 and 2 (in an array with three entries). A random integer number between 0 and n is generated by Math.floor(Math.random() * (n + 1));

So you need to calculate in your case

var i = Math.floor(Math.random() * 3);

You get the random entry out of the array with

question[i]