Jan 10 • 🎯 Challenges
Quiz #20
What will the following expression return if the variable id is empty?
Correct syntax:
join(map(array[]; name; student_id; {{id}});,)
It will return an error because id is empty
It will return the first item from the entire array[]
It will return an empty value (null)
It will return all names from array[]
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Quiz #20
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