Code is a mass noun, like water or sand.
You don't say "I wrote five codes today" any more than you'd say "I drank five waters."
Say This
- "I wrote some code today"
- "The code is working"
- "I need to review the code"
- "Let me fix this piece of code"
Not This
- "I wrote some codes today" ❌
- "The codes are working" ❌
- "I need to review the codes" ❌
- "Let me fix these codes" ❌
Why Does This Matter?
Using proper grammar helps you sound more professional and credible in technical discussions.