Explain what is optional chaining?



Explain what is optional chaining?..

Answer / iosraj

Optional chaining is a process of querying and calling properties. Multiple queries can be chained together, and if any link in the chain is nil then, the entire chain fails.

Is This Answer Correct ?    0 Yes 0 No

Post New Answer

More Apple iOS Swift Interview Questions

What is extension in swift?

0 Answers  


Who created swift?

0 Answers  


What is swift stand for?

0 Answers  


What is nsdictionary in swift?

0 Answers  


What is swift programming?

0 Answers  






What is benefit of using higher order functions?

0 Answers  


Can you make a property optional?

0 Answers  


What is indexpath in swift?

0 Answers  


What is observer in swift?

0 Answers  


Explain enum?

0 Answers  


What type of literals does swift language have?

0 Answers  


Explain deinitializer in swift programming language?

0 Answers  


Categories