How to check if list is empty in Apex
Summary
The article explains how to determine if a list in Apex is empty or not, a common requirement for Salesforce developers handling collections. It covers best practices to check for null or empty lists efficiently, helping avoid runtime exceptions. Salesforce professionals can leverage these insights to improve code reliability and prevent errors when working with lists in Apex triggers or classes.
Takeaways
- Always check for null before checking if a list is empty in Apex.
- Use .isEmpty() method to verify if a list contains any elements.
- Avoid common null pointer exceptions by combining null and emptiness checks.
- Efficient list checks improve code robustness in Apex triggers and classes.
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