JS snail in the well. help

Question

my code:
function main() {
var depth = parseInt(readLine(), 10);
do (+7-2);
while (i< 31)
the error:
/usercode/file0.js:21
while (i< 31)
^

ReferenceError: i is not defined
at main (/usercode/file0.js:21:13)
at ReadStream.<anonymous> (/usercode/file0.js:11:5)
at ReadStream.emit (events.js:327:22)
at endReadableNT (_stream_readable.js:1327:12)
at processTicksAndRejections (internal/process/task_queues.js:80:21)

Answer 1

Please, don't post questions repeatedly. Your such action may be considered as spam.

Read the instructions carefully. Also, check what is applicable in order to solve it. Whether "if-else" statement or "for loop" or "do-while loop".

Your code is incomplete. [Here is little help for you]. Check and understand where you made mistake.

Also try to use search option:

https://www.sololearn.com/discuss/2665192/?ref=app
https://www.sololearn.com/discuss/2618113/?ref=app
https://www.sololearn.com/discuss/2617598/?ref=app
https://www.sololearn.com/discuss/2624694/?ref=app
https://www.sololearn.com/discuss/2690678/?ref=app

Answer 2

thank you. I did not mean to post it that many times