Review Glossary FR

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Eyes

Finish a part in any dojo to unlock the next eyes.

Find the bug before you read the fix.

One real bug a day, from a real fix commit. Questions you get right come back 1, 3, 7, 21 and 45 days later.

Today · day 1 · 10 min

Off-by-one between a column and an offset
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0 of 40 chapters done

Counting: 0 of 8Inputs: 0 of 8State and time: 0 of 8Resources: 0 of 8Logic: 0 of 8
One pillar per part. It fills as you finish its chapters.

The path

Counting: 0 of 8Counting

  1. Off-by-one between a column and an offset 1
  2. Integer overflow in a NumPy element count 2
  3. Floating point error when converting dollars to cents 3
  4. Sizing a UTF-8 buffer with the string length 4
  5. Daylight saving time in monthly log rotation 5
  6. The last Thursday of February 6
  7. A remainder of zero 7
  8. One character past the template 8

Inputs: 0 of 8Inputs

  1. The check one line too late 9
  2. A sitemap with nothing in it 10
  3. A duration of 0 that still animated 11
  4. A quote in a heading ID 12
  5. A sibling folder with a longer name 13
  6. Regex backtracking on an email with too few words 14
  7. A database called notanumber 15
  8. Offsets after stripping a BOM 16

State and time: 0 of 8State and time

  1. Double-checked locking: assign the field last 17
  2. Thread names from an unlocked counter 18
  3. A missing await on asyncio.gather 19
  4. An idempotent StopContainer in containerd 20
  5. A rate limit key without the controller 21
  6. A loop variable captured by a goroutine 22
  7. Two signal handlers, pushed in the wrong order 23
  8. A fetch with no timeout 24

Resources: 0 of 8Resources

  1. A connection close skipped by a throw in finally 25
  2. An OAuth task still waiting at shutdown 26
  3. A timeupdate listener left on a removed audio element 27
  4. A lease heap that only the etcd leader empties 28
  5. A waker dropped while the JoinSet mutex is held 29
  6. Sidekiq drain_all loops on a job outside its default queue 30
  7. Copying a list from the head every time 31
  8. A connection counted but never pooled 32

Logic: 0 of 8Logic

  1. A locale that stays set 33
  2. A headers dict shared by every session 34
  3. An empty IV that passed the length check 35
  4. The cancel function that stays nil 36
  5. A config parse error reported as an unknown command 37
  6. Hashes that were never freed 38
  7. CAST5 CFB and OFB default to an 8-byte key 39
  8. An array that passes as a severity 40