Learn Swift Fundamentals by preparing for Job Interview, Questions 39 ~ 44 For Initializer

Swift has a lot of different initializers. I was very confused at first too. If you know exactly this concept, your interviewers will be impressed!

39) What is initializer?

Answer:

• Initializer is a method that constructs the object with proper default values.

swift initializer

40) What are the different types of initializers available in Swift?

Answer:

• Default
• Customized
• Convenience
• Failable
• Required

Swift has many initializers

41) What is the default initializer in Swift?

Answer:

• init is the default initializer in Swift.

Swift Default Initializers

42) What is parameterized / Custom Initializer?

Answer:

• init method with some input parameters to construct the object with custom values.

Swift Custom Initilizer

43) What is designated initializer in Swift?

Answer:

Default init method is the designated initializer

44) What is convenience initializer in Swift?

Answer:

• Convenience Initializer is a kind of initializer which sets custom values for a few properties of an Object. Use convenience keyword to create convenience initializer.
• Designated initializer must be called before setting the custom values.

Convenience Initializer

Repository

GitHub - paigeshin/ios_ultimate_interview_questions