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

Posted by jrmcintyre
jrmcintyre
4,892 Points

Math.floor command isn't working

Please help

script.js 
var temperature = 37.5;
temperature = Math.round(temperature);
alert(temperature)
temperature = Math.floor(temperature);
alert(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>

3 Answers

andren
andren
28,558 Points
andren
andren
28,558 Points

Math.floor is not working because you changed the value of temperature into a rounded version. You are not meant to alter the temperature variable at all during this task. Only print it out using the round and floor methods. Like this:

var temperature = 37.5;
alert(Math.round(temperature));
alert(Math.floor(temperature));

I also added semicolons to your alert calls. Semicolons are not mandatory in JavaScript unless you have multiple statements on one line. So your code would have worked without them, but using them is considered a good practice.

nico dev
nico dev
20,364 Points
nico dev
nico dev
20,364 Points

Oops, sorry, silly of me.

I didn't check the challenge.

andren is right, James. Ignore my answer, sorry. :)

Manpreet Singh
Manpreet Singh
13,014 Points
Manpreet Singh
Manpreet Singh
13,014 Points

you should add semicolon after alert

nico dev
nico dev
20,364 Points
nico dev
nico dev
20,364 Points

Hi James McIntyre ,

It does! Great job.

Just remember removing the Math.round() before when you try the Math.floor().

Otherwise the Math.round() will change the temperature variable value to 38 and Math.floor() will just return 38.

Try it. It should work. It did to me.