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

Posted by ericjoe
ericjoe
1,203 Points

When on task 2, and leaving in task 1 code, does not the value just remain 38? My code validates in console. Stuck.

I am not able to proceed, says my code is incorrect but yet it validates in console. Snippet here:

var temperature = 37.5

temperature = Math.round(temperature);

alert(temperature);

temperature = Math.floor(temperature);

alert(temperature);

2 Answers

Jason Anello
PLUS
Jason Anello
Courses Plus Student 94,610 Points
Jason Anello
Jason Anello
Courses Plus Student 94,610 Points

Hi Paul,

The code challenge doesn't want you to change the temperature value. Both the round and floor function should operate on the original value of 37.5

Rather than assign the return value of these functions back to temperature you should instead alert the return values directly.

Example: alert(Math.round(temperature));

This way you're alerting the 38 but still keeping the 37.5 in temperature.

ericjoe
ericjoe
1,203 Points

Thanks Jason!

Dave McFarland
STAFF
Dave McFarland
Treehouse Teacher
Dave McFarland
Dave McFarland
Treehouse Teacher

Hi Paul the Schmit

The problem is that you're changing the actual value of the temperature variable: 

temperature = Math.round(temperature);

After this code runs, the value in temperature is 38. Just alert the rounded value without changing the variable itself:

alert(Math.round(temperature));
ericjoe
ericjoe
1,203 Points

Thanks Dave! Perhaps an update of the error messaging, a more appropriate hint would have pointed me in the right direction.