How many times will the following for loop run?

Question

for (var i = 1; i <= 5; i++) {
i = f(i);

}

function f(x) {
return x + 3;
}

Could anyone explain why it's 3 not 2 ?

Answer 1

How did you get 3.

It will run 2 times. Just print i inside loop and check how many times it will print.

Edit: actually value will be print 2 times but for loop will run 3 times.

Answer 2

Alaa Aldeen Shammr

Actually for loop will run 3 times but on 3rd time condition will return false because of 9 <= 5 so 3rd value will not be print.

Answer 3

Solo

Yes cycle will execute twice but run 3 times and on 3rd time execution will get fail and will not print any value.

Answer 4

I made a test in node with the code below, and it outputs 4 and 8

for (var i = 1; i <= 5; i++) {
i = f(i);
console.log(i);
}

function f(x) {
return x + 3;
}

Answer 5

Alaa Aldeen Shammr, I'm glad you figured it out, it's a very simple cycle. To draw an analogy, it's like trying to walk through a closed door, just because you pulled the door handle doesn't mean you walked through it. There were three attempts, but only two cycles.
Successful coding!🖐️😎

Answer 6

A͢J , the cycle will be executed only twice, the third time "i" will be equal not to 6, but to 9 and the cycle will be interrupted.

Answer 7

A͢J

This is one of sololeaen challenges.
When I wrote 2 I got a wrong answer.
But chatgpt said 3.
That confused me

Answer 8

A͢J

https://www.sololearn.com/post/1748664/?ref=app

Answer 9

From the screenshot answer 2 is like "How many numbers will get printed?".
While the question is asking how many time the loops will run, and it is 3 because it need the third loops to evluated a false expression.

I don't think the community challenge are all made correctly, and I come across a questionable challenge in python not too long ago.

Answer 10

Sorry all, I was confused 😅
The question is correct.
But when you review the challenge, sololearn gives you the correct answer not the answer you inserted.
Maybe I didn't enter 2.
Sololearn is correct ✅, chatGPT is wrong ❌.

Answer 11

It would be nice if sololearn allow us to see our answers as well, so we won't get confused next time.

Answer 12

Because when the Loop begins with
I=1
It enters into loop
While entering it will call the function f()
Then the i become changed value.. like that way I think code will execute in 2 times Only...

Answer 13

How can i create image of the company

Answer 14

first --> i = 1
second --> from (i = f (i))=(i = i+3) and i = 4 after that from i++ --> i =5
thirt works because condition 5<=5 --> true, and i = i+3+1=9
3 times....