PCB Design - Design Review and Testing
A design review tool reports 'footprint mismatch' errors but the script always returns zero errors. The script line is: 'errors = count(footprint_mismatch)'. What is the likely cause?
A design review tool reports 'footprint mismatch' errors but the script always returns zero errors. The script line is: 'errors = count(footprint_mismatch)'. What is the likely cause?
medium📝 Formula Fix Q7 of 15
Step-by-Step Solution
Solution:
Step 1: Understand count function usage
Count returns number of items in footprint_mismatch list.Step 2: Identify why count returns zero
If footprint_mismatch is empty or undefined, count returns zero.Final Answer:
The footprint_mismatch variable is empty or undefined -> Option AQuick Check:
Empty variable causes zero count [OK]
Quick Trick: Check variable content before counting [OK]
Common Mistakes:
MISTAKES- Assuming count syntax is wrong
- Ignoring empty or missing data
- Confusing count with sum function
Master "Design Review and Testing" in PCB Design
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore PCB Design Quizzes