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

sesha anil kumar
sesha anil kumar
1,484 Points
Posted by sesha anil kumar
sesha anil kumar
1,484 Points

Open an alert dialog a second time and display the temperature variable rounded downward to the nearest integer.

help me

script.js 
var temperature = 'Math.round(37.5)';
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

Adam Beer
Adam Beer
11,314 Points
Adam Beer
Adam Beer
11,314 Points

Hello Sesha! You can use it as you did it but leave the pharagraphs. When you use Math.round() method don't use apostrophs. It should be at the strings but not at the numbers. Math.round() method put inside the alert dialog. So alert(Math.round(var name));. Like this. Hope this help.

alert(Math.round(temperature));
ilya A
ilya A
3,802 Points

I forgot to add an extra parentheses at the end of mine... Thanks for pointing that out!

tobiastrinkler
seal-mask
.a{fill-rule:evenodd;}techdegree
tobiastrinkler
Full Stack JavaScript Techdegree Student 16,538 Points
tobiastrinkler
.a{fill-rule:evenodd;}techdegree
tobiastrinkler
Full Stack JavaScript Techdegree Student 16,538 Points

Hi Sesha,

Just leave out the quotation marks around your method and all work fine :).

var temperature = Math.round(37.5);

alert(temperature);
Justin Cantley
Justin Cantley
18,068 Points
Justin Cantley
Justin Cantley
18,068 Points

If your goal is to round down then you want to use Math.floor() instead of Math.round().

var temperature = Math.floor(37.5);

alert(temperature);

or simply

alert(Math.floor(37.5));
Adam Beer
Adam Beer
11,314 Points
Adam Beer
Adam Beer
11,314 Points

I think your second 'simply' code is not the better way. I may think wrong but I think it so better. For example:

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