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JavaScript JavaScript Basics (Retired) Working With Numbers Using Math Methods

Posted by James Sale
James Sale
662 Points

why doesnt this work alert(math.round "temperature");

alert(math.round "temperature");

script.js 
var temperature = 37.5;
alert(math.round "temperature");
index.html 
<!DOCTYPE HTML>
<html>
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  <title>JavaScript Basics</title>
</head>
<body>
<script src="script.js"></script>
</body>
</html>

1 Answer

Steve Hunter
Steve Hunter
57,712 Points

Hi James,

I think you want to surround temperature with brackets rather than inverted commas else it will be treated as a string, not a variable. So, you want to alert with the value Math.round(temperature) (don't forget the capital 'M').

OK with that? Let me know how you get on.

Steve.

James Sale
James Sale
662 Points

Hi steve,

Thanks for the advice. Silly on my part, really, left out the capital M and managed to resolve it with the below:

alert (Math.round (temperature));

Thanks again

Steve Hunter
Steve Hunter
57,712 Points

Spot on - good work! :smile: :+1: