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iOS Swift Basics (retired) Collections Modifying an Array

Posted by abdullah alhashmi
abdullah alhashmi
1,222 Points

i want to replace the second column. i need help please check out my code

i want to replace the second column. i need help please check out my code

arrays.swift 
var todo = ["Learn Swift", "Build App", "Deploy App"]
todo += ["Debug App", "Fix Bugs"]
let item = todo.removeAtIndex(2)
todo.insert("Deploy App", atIndex : 2 )

1 Answer

kjvswift93
kjvswift93
13,515 Points
kjvswift93
kjvswift93
13,515 Points

This is the final solution: 

var todo = ["Learn Swift", "Build App", "Deploy App"]
todo.append("Debug App")
todo.append("Fix Bugs")
let item = todo.removeAtIndex(2)
todo.insert("Learn iOS", atIndex: 1)

You need to use the append method in order to add the two strings at the end of the array. The final line has two issues. First, the string should be "Learn iOS, not "Deploy App". Second, the index for the second position in the array is actually 1, not 2, given that an array's index number is 0 based.