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Can't understand the output.

This is a question in the js course.The correct answer is 16, but I can't understand how it's 16. It would be great if someone explained the solution. What is the output of this code? var sum=0; for(i=4; i<8; i++) { if (i == 6) { continue; } sum += i; } document.write(sum);

11th Oct 2016, 1:02 PM
Faaiz
Faaiz - avatar
2 Respuestas
+ 4
i starts off as 4. since i != 6, we add 4 to our total, which is now 4. i is 5. since i != 6, we add 5 to our total, which is now 9. i is 6. since i == 6, we end the loop right here and jump back up. i is 7. since i != 6, we add 7 to our total, which is now 16. i is 8, and our loop stops. We print 16 onto the screen.
11th Oct 2016, 1:24 PM
Schindlabua
Schindlabua - avatar
+ 1
var sum=0; This is used to intialize sum to 0 for(i=4; i<8; i++) { if (i == 6) { continue; This means that the the loop will skip the treatement when i=6 } sum += i; This means that sum=sum+1 each time the loop is run } Now, we started with sum = 0 and i = 4 for i= 4 we will have sum = 4 by the end of the treatement for i= 5, sum= 4+5 = 9 The loop won't sum for i=6 because we have the continue statement for i= 7 we add 7 to the total which means sum = 9+7 = 16 document.write(sum); prints the result on the screen Hope it helps !
11th Oct 2016, 3:08 PM
Olfa Fdhila