optional chaining1 [Swift] Optional Chaining References https://docs.swift.org/swift-book/LanguageGuide/OptionalChaining.html Contents Optional Chaining as an Atlternative to Forced Unwrapping Defining Model Classes for Optional Chaining Accessing Properties Through Optional Chaining Linking Multiple Levels of Chaining Chaining on Methods with Optional Return Values Optional Chaning은 현재 'nil'일 수도 있는 optional properties/methods/subscripts를 .. 2022. 1. 8. 이전 1 다음