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iOS Swift Basics (retired) Collections Modifying an Array

Edwin Mhoy Silva Rifa
Edwin Mhoy Silva Rifa
2,631 Points
Posted by Edwin Mhoy Silva Rifa
Edwin Mhoy Silva Rifa
2,631 Points

What is the difference between append and insert? - and when too use them?

Help med pls

2 Answers

Alan Johnson
Alan Johnson
7,625 Points
Alan Johnson
Alan Johnson
7,625 Points

append always places the item at the end of the array, whereas insert places it at the given position within the array. You could certainly insert to the end of the array as well.

Here's a quick example that you can toss into a playground:

var arr = ["Zero", "Two"]

arr.insert("One", atIndex: 1)
arr

arr.append("Three")
arr

arr.insert("Four", atIndex: 4)
arr
Alan Johnson
Alan Johnson
7,625 Points
Alan Johnson
Alan Johnson
7,625 Points

Sure thing, Edwin. Happy learning!

Edwin Mhoy Silva Rifa
Edwin Mhoy Silva Rifa
2,631 Points
Edwin Mhoy Silva Rifa
Edwin Mhoy Silva Rifa
2,631 Points

Thank you - I´m just asking, and hope you could answer :)

  • Do you thing its hard too make an app, and how long would it take to learn it :) ?
Myers Carpenter
Myers Carpenter
6,421 Points

It depends on what you want your app do to. We have courses on to make two different apps with Swift.