Variables
Arrays in Swift
Arrays are used to assign a series of elements of the same type in consecutive memory locations; to define a list of elements. They work similar to variables, except they contain multiple values at different indices.
Syntax
//empty array
var arrayName = [dataType]()
arrayName.append(value) //add item to array
arrayName += [value] //another way of adding an item
arrayName[index] //access array value
//array with default values
var defaultArray = [dataType](count: countNumber, repeatedValue: valueToRepeat)
//array with pre-defined values
var predefinedArray: [dataType] = [value1, value2, ...]Notes
The range of array indices is 0 to size minus 1. The size of an array can be found using the .count property.
Arrays can be added together. They can also be made empty again using [].
You can check if an array is empty by using the .isEmpty property.
Example
var array = [int]() //declaring an array of size 2
array.append(0) //storing a value of 1 in the first element
array += 1 //storing a value of 2 in the second element