What is optional chaining?
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What is an optional in swift?
Explain what is optional chaining?
What are the different collection types available in swift?
Explain the adapter and memento pattern?
What language is similar to swift?
What is set swift?
What do you do when you realize that your app is prone to crashing?
What is an attribute in swift?
What is a guard statement?
What is the purpose of swift?
Explain dictionary in swift.
What is mutating keyword in swift?