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

Tairony Campos Lozer
Tairony Campos Lozer
1,029 Points
Posted by Tairony Campos Lozer
Tairony Campos Lozer
1,029 Points

What is wrong ?

What is missing?

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

Katie Wood
Katie Wood
19,141 Points
Katie Wood
Katie Wood
19,141 Points

Hi there,

You're close - the challenge asks for the value to be rounded to the nearest integer. Math.floor() will round down to the nearest integer, but Math.round() will do what it's looking for - nearest integer, up or down. If you replace the method name, it should pass.

---Updated to show comment from discussion below---

Ah, so you're on Step 2 - that's the problem.

You need to keep the code from Step 1 - in challenges, you almost never want to delete code from previous steps unless it specifically tells you to. What you need here is to have both alerts:

var temperature = 37.5;
alert(Math.round(temperature));
alert(Math.floor(temperature));
Tairony Campos Lozer
Tairony Campos Lozer
1,029 Points
Tairony Campos Lozer
Tairony Campos Lozer
1,029 Points

I was trying, but it did not work.

Katie Wood
Katie Wood
19,141 Points

Would you mind copying what you're trying now? It should look like this:

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

It also occurs to me that you didn't mention which step you were on - if you're on Step 2, make sure you keep the code from Step 1 also.

Tairony Campos Lozer
Tairony Campos Lozer
1,029 Points
Tairony Campos Lozer
Tairony Campos Lozer
1,029 Points

I can't believe it ... lol I tried everything but that. Cool =) Thank you very much

Katie Wood
Katie Wood
19,141 Points

Glad you got it!

Tairony Campos Lozer
Tairony Campos Lozer
1,029 Points
Tairony Campos Lozer
Tairony Campos Lozer
1,029 Points

I paste, the same =(

I paste var temperature = 37.5; alert (Math.round(temperature));

ERROR Bummer! Did you use the Math.floor() method?

Open an alert dialog a second time and display the temperature variable rounded downward to the nearest integer. You'll need to check the Mozilla Developer Network to find the proper Math method for this (hint: down is toward the "floor".)

Katie Wood
Katie Wood
19,141 Points

Ah, so you're on Step 2 - that's the problem.

You need to keep the code from Step 1 - in challenges, you almost never want to delete code from previous steps unless it specifically tells you to. What you need here is to have both alerts:

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

I'll update my answer to reflect this - since you only had one alert(), I figured you were probably on Step 1.