50 iOS Interview Questions And Answers Part 6

Durul Dalkanat
2 min readDec 25, 2019
The National Gallery of Art

The long wait is over! Here is Part 6 of the series of 50 iOS Interview Questions. Check out Part 1, Part 2, Part 3, Part 4 and Part 5 if you haven’t already :). Let’s get started.

1- Why it is better to use higher-order functions?
Functions that take another function as a parameter, or return a function, as a result, are known as higher-order functions. Swift defines these functions…