Huseyn Guliyev2,603 Points
Arrays and Dictionaries
I know this is not the right place to ask, but I am going to do it anyway. What is the difference between an array and a dictionary?
Jhoan ArangoTreehouse Moderator 13,603 Points
This is the right place to ask...
An array stores values of the same type in order. A dictionary also stores values but with a key on them, this is called a key value pair, and they are not ordered in a particular way.
// Array let numbers: [Int] = [1,2,3,4,5,6,7,8,9] // To get a value from the array, // we use the index where the value is at. // If we want the first value we use "0" let one = numbers print(one) // This will print the number 1 // Dictionary let numbersDictionary: [String: Int] = ["one" : 1, "two" : 2, "three": 3] // To get a value from the dictionary, // we use the key for the value. let three = numbersDictionary["three"]! print(three) // this will print the number 3