Q1. what is difference between null, empty,blank
Q2. can I use for a!isnullorEmpty() for removing/checking null,empty and blank or apply different functions for checking them.
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Stefan has a great blog post on this topic:
Came across an scenario, I am not sure it will be real-time scenario. In the below example it is returning value as false.
Ex: {null, " " ,null}
Which function returns false?
Did you read my blog post?