Prevent Infinite Loops with a Valid Terminal Condition1

JavaScript
1

Tell us what’s happening:

Please help I don’t know what to do?

Your code so far


function myFunc() {
  for (loop i = 1; i != 4; i += 2) {
    console.log("Still going!");
  }
}

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36.

Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/debugging/prevent-infinite-loops-with-a-valid-terminal-condition

2

Try reading this page https://www.w3schools.com/js/js_loop_for.asp
It has more explanations about for loops and then after you read retry the challenge.

3

Klaudia why did you make another post instead of continuing the last one?

Try write down the value of i at each step of the loop and look at when the loop should end

1 Like
4

I have read this site but it is difficult for me.

5

sorry but I forgot that I have post for help.

6

ok I can do a little hand-holding here but I need your co-operation…

Can you write a for loop that counts from 0 to 10 ? If you can do that (pls post code here), I can help you understand this lesson. But if you are struggling, please go back to a previous lesson on for loops to re-try the challenge on for loops before coming back to this one…

7

Can you tell me exactly what to ood?

8

*do?(That I mean)…

9

function loopy() {
while (true) {
console.log(“Still going!”);
}
}With that code I have the second right.It is right?

10

this video may help you understand for loops

11

Yes I saw it.But sorry again I don’t understand because I believe it is hard.

13

I don’t understand how can I write the code the syntax.

15

I read it and I write this code:
function myFunc() {
for (let i = 1; i <= 4; i += 2) {
console.log(“Still going!”);
}
}

Is right?

16

what you wrote above is exactly the same as saying:

let i=1;
while (i <= 4) {
  console.log("Still going!");
  i+=2;
}

So i will start at 1
compare 1 to 4, is it <=4 ? yes
log the message to the console “Still going!”
increment 2 to i so i becomes 1+2 = 3

i is 3 , is it <=4 ? yes
log the message to the console “Still going!”
increment 2 to i so i becomes 3+2 = 5

i is 5, is it <=4 ? no , therefore do not execute the code in the loop

So as you can see, what you wrote definitely is not an infinite loop like the one you started with (i != 4)

Edit: and yes your new code should pass the challenge.

17

This code above is right.

1 Like