By now, I don’t just write Apex that works—I write Apex that scales. That means one thing above all: bulkification.
Salesforce doesn’t like it when you loop through records and perform DML (like insert, update, etc.) inside the loop. So I always structure code to:
Collect data in a List<> or Map<>
Perform logic in bulk outside the loop
Use Set<Id>s to query efficiently
Every time I write a trigger or utility class, I ask: Can this handle 200 records at once? If not, it’s not ready.
Bulk-safe code = deployment-safe code.
