Learn Swift Fundamentals by preparing for Job Interview, Question 118 For Subscripts

Subscript is not a difficult concept at all, but apple doc explains it in an incomprehensible way .

109) What is subscript? How to declare subscript? Advantages?

Answer:

• Subscript is a shortcut way of accessing Class or Structure’s collection.
• Subscript is a feature that enables classes / structures’ to access their values in a shortcut way.

struct School {
	
	var students: [String] = ["Paige", "Sunghee", "Seunghyun"]
	subscript(index: Int) -> String {
		return students[index]
	}
}
let school: School = School()
print(school.students[0]) // Paige
print(school[1]) // Sunghee

Repository

GitHub - paigeshin/ios_ultimate_interview_questions