Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

JavaScript JavaScript Basics (Retired) Working With Numbers Doing Math

Kimberly Dolcin
Kimberly Dolcin
4,369 Points
Posted by Kimberly Dolcin
Kimberly Dolcin
4,369 Points

I am trying to find out the total number of seconds I have been alive in all the years I have been alive, is this correc

var secondsPerMin= 60;
var minsPerHour=60;
var hoursPerDay = 24;
var hoursPerWeek = 7;
var weeksPerYear = 52;
var secondsPerDay = secondsPerMin *minsPerHour * hoursPerDay;
document.write("There are" + secondsPerDay + "seconds in a day");
var yearsAlive = secondsPerDay * 22

4 Answers

Kevin Williams
Kevin Williams
Courses Plus Student 2,186 Points 
var secondsPerMin = 60;
var minsPerHour = 60;
var hoursPerDay = 24;
var daysPerWeek = 7;
var weeksPerYear= 52;
var secondsPerDay = secondsPerMin * minsPerHour * hoursPerDay;
var secondsPerYear = secondsPerMin * minsPerHour * hoursPerDay * 365;
document.write("There are " + secondsPerDay + " seconds in a day ");
var yearsAlive = 26; /*Years I have been alive*/
document.write("I have been alive for" + yearsAlive * secondsPerYear + " seconds.");

I know this may be late, but this is how I calculated it.

What you need to do is figure out how many seconds are in a year. For my math I used only the mins, hours, and days. Then I took that amount and multiplied it by 365. After that I created a variable with the amount of seconds that are in a year (secondsPerYear) and got that total as you can see in the code. Doing this allowed me to multiply yearsAlive with secondsPerYear and gave me an estimate of how long I have been alive from 1992 to 2018 which is 819936000 seconds. I hope this helped.

Kimberly Dolcin
Kimberly Dolcin
4,369 Points
Kimberly Dolcin
Kimberly Dolcin
4,369 Points

No, it is yearsAlive, i got this proble from the 4th checkpoint in the JavaScript Basics course entitled "JavaScript Basics" can you explain why i have to multiply days per year?

Steven Parker
Steven Parker
231,236 Points
Steven Parker
Steven Parker
231,236 Points

You said you wanted to determine "the total number of seconds I have been alive". So it would make sense to call that "secondsAlive". Apparently, "yearsAlive" in your case is 22.

So if you multiply 22 by "secondsPerDay" the resulting value would the number of seconds in 22 days (1,900,800). Then if you multiply again by days per year you will get the number of seconds in 22 years (164,229,120,000).

Chanraksar Wat
Chanraksar Wat
1,251 Points
Chanraksar Wat
Chanraksar Wat
1,251 Points

So I've been trying to do this step by step and came up with code. Please let me know if I do it right. '''html <p> https://teamtreehouse.com/workspaces/38306242#</p> ''' Age: 25 Answer I got: 786240000 seconds

Gancho Iliev
Gancho Iliev
10,264 Points
Gancho Iliev
Gancho Iliev
10,264 Points

I've done it this way:

var secondPerMin = 60;
var minsPerHour = 60;
var hoursPerDay = 24;
var daysPerWeek = 7;
var weeksPerYear = 52;
var secondsPerDay = secondPerMin * minsPerHour * hoursPerDay;
var yearsAlive = 365 * secondsPerDay * 26;
document.write('There are ' + secondsPerDay + ' seconds in a day.');
document.write(' I\'ve been alive for ' + yearsAlive + ' seconds.');

Is it wrong? Thanks