Recurrence relations

[miss time]

Hi ;
Can someone please explain to me how we get 44 in this question
sum = 0;
grades = [8, 9, 10, 9, 8];
for (i = 0; i < grades.length; i++){
sum = sum + grades[i];}
document.write( sum + "<br>");
the answer will be 44

[iam_clint]

8+9+10+9+8=44

get it?

[pbmods]

[code=javascript]
sum = 0;
[/code]
Self-explanatory.

[code=javascript]
grades = [8, 9, 10, 9, 8];
[/code]
Google 'JavaScript array literal'.

[code=javascript]
for (i = 0; i < grades.length; i++){
[/code]
Google 'JavaScript for loop'.

[code=javascript]
sum = sum + grades[i];}
[/code]
Google 'JavaScript arrays'.

[code=javascript]
document.write( sum + "<br>");
[/code]
Google 'JavaScript document.write' .