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Josh Arrington
Courses Plus Student 2,796 PointsWhy is the document.write() function outside of the loop?
I'm curious as to why the document.write() function is written once outside of the loop.
To me it would make sense that each time the color is generated and assigned to the html variable in the loop, it's written to the screen. That happens 10 times and the loop is over. This seems to work when I move the document.write() function as the last line of the loop.
But why does it work with the document.write() function outside of the loop and written only once?
3 Answers
Robert Manolis
Treehouse Guest TeacherFirst, love your profile pic. Roger is the greatest.
If the document.write was inside the loop, then everything would be written to the page once for each iteration of the loop. You'd end up with a bunch of duplicates.
Putting it outside the loop means it only writes once.
vanessa
3,455 PointsEither way it would work, it just a matter of preference.
if it is inside the loop, then it writes every time the loop runs. if it is outside the loop, then it collects the data first. Like it saves the data inside a variable first. then prints it all one time.
Josh Arrington
Courses Plus Student 2,796 PointsThanks, that actually helped me clear it up. I didn't notice the concatenation of the 'html' variable so I thought it was being overwritten with every iteration. That makes a lot more sense!
Robert Manolis
Treehouse Guest TeacherDon't forget to mark best answer if there is one or give an up vote for answers you think are good. :)