Select a random string from an array [duplicate]

Question

Possible Duplicate:
JavaScript: Getting random value from an array

Could someone help me on this topic? I've got this code.

var textArray = [
    'song1.ogg',
    'song2.ogg'
]
audioElement.setAttribute('src', textArray);

How can I randomly get one of those strings into my audio element?

Would be glad if someone can help....

blog.mastykarz.nl/jquery-random-filter Here is a way you can do it with a JQuery Extension. — Manual5355
– Manual5355, Commented Sep 8, 2011 at 15:19

Gideon · Accepted Answer · 2011-09-08 15:16:03Z

95

var textArray = [
    'song1.ogg',
    'song2.ogg'
];
var randomNumber = Math.floor(Math.random()*textArray.length);

audioElement.setAttribute('src', textArray[randomNumber]);

answered Sep 8, 2011 at 15:16

Gideon

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5 Comments

Gideon Over a year ago

had a little spelling mistake (length should be without capital), but fixed it in my answer

Mausoleum Over a year ago

Yeah thanks you told me. It didn't work first but now it does. Thanks! By the way is it really needed to put a semicolon after every line?

jbabey Over a year ago

yes, you need a semicolon to terminate every statement in javascript. also, please mark Gidon's answer as correct if it solves your problem.

Felix Kling Over a year ago

@jbabey: That is incorrect. JavaScript inserts semicolons automatically, but because it is not perfect, it does not always insert them at the right place. So, you don't have to use semicolons, but you really really should.

Mausoleum Over a year ago

Thanks to you all. I marked it as correct. I forgot that becuase of the timespan I have to wait to do that...

sberry · Accepted Answer · 2011-09-08 15:16:34Z

22

var randomIndex = Math.floor(Math.random() * textArray.length); 
var randomElement = textArray[randomIndex];

answered Sep 8, 2011 at 15:16

sberry

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