William Alexander Aldana Carvajal
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William Alexander replied to the discussion Difference between list.Size() > 0 vs list != null vs list.IsEmpty() in Salesforce? in the forum Salesforce® Discussions 5 years ago
Reply to Difference between list.Size() > 0 vs list != null vs list.IsEmpty() in Salesforce?
List.Size() is slow because needs to count all the elements in the collection.
List.IsEmpty() only checks zero position has value.
if you joins list != null and !list.IsEmpty() you will avoid possible null exceptions.
I've read the difference is approximately 10%. I have not checked it but has a sense
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William Alexander became a registered member 5 years ago
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