The first
property returns the first element of the array.
Example
var languages = ["Swift", "C", "Java"]
// check if leanguages is empty or not
var result = languages.first
print(result!)
// Output: Swift
first Syntax
The syntax of the array first
property is:
array.first
Here, array is an object of the Array
class.
first Return Values
The first
property returns the first element of array.
Note: The first
property returns an optional value, so we need to unwrap it. There are different techniques to unwrap optionals. To learn more about optionals, visit Swift Optionals.
Example: Swift Array first
var names = ["Gregory", "Perry", "Nadal"]
// return first element of names
print("First Name of Array: ", names.first!)
var even = [2, 4, 6, 8, 10]
// check first element of even
print("First Even Number:", even.first!)
Output
First Name of Array: Gregory First Even Number: 2
Here, the first element of the names array is "Gregory"
, so the first
property returns "Gregory"
string.
Similarly, the first element of the even array is 2, so the property returns 2.
Note: Here we have used !
to force unwrap the optional. To learn more about forced unwrapping, visit Optional Forced Unwrapping.