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

Milber Ferreira
Milber Ferreira
4,720 Points

How to solve this problem: Open an alert dialog a second time and display the temperature variable rounded downward?

Open an alert dialog a second time and display the temperature variable rounded downward to the nearest integer (hint: down is toward the “floor".)

My solution:

var temperature = 37.5 alert(Math.round(temperature)); alert(Math.round(temperature - .1));

script.js
var temperature = 37.5
alert(Math.round(temperature));
alert(Math.round(temperature - .1));
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>

Hey Milber, you should use Math.floor method (check how it works on Mozilla Developer Network); forget about Math.round function in this case ;)

Milber Ferreira
Milber Ferreira
4,720 Points

Great!

Thank you Michal.

It was not very clear on the question but the Hint make sense now ;)

2 Answers

Use Math.floor(). There is a lot of method you will find useful. https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/floor

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

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaah got it after watchin the video twice