Array1 = [Washington, Franklin, Florida, Alaska, California, Georgia]
Array2 = [California, Washington, Georgia]
I want to get
Array1 = [Washington, California, Georgia]
4 Answers
var array1 = ["Washington", "Franklin", "Florida", "Alaska", "California", "Georgia"]
var array2 = ["California", "Washington", "Georgia"]
let filterArray = array1.filter {
array2.contains($0)
}
The filterArray is what you want
Comments
You can use filter for achieving desired output
Using filter:
let array1 = ["Washington", "Franklin", "Florida", "Alaska", "California", "Georgia"]
let array2 = ["California", "Washington", "Georgia"]
let aryCommonElements = array1.filter { array2.contains($0)}
Output:
["Washington", "California", "Georgia"]
Hope this will help you :)
2 Comments
3stud1ant3
He can not use the sets , because he wants to maintain the order
iOS_MIB
I have showed two methods. One with set and other with Filter. The filter one will work. I have edited my answer please check it
try this
let filteredArray = array1.filter({Array2.contains($0)})
Comments
If you want to retrieve only common elements than use:
In Swift 3
let Array1 = ["Washington", "Franklin", "Florida", "Alaska", "California", "Georgia"]
let Array2 = ["California", "Washington", "Georgia"]
let common = GetCommonElements(lhs: Array1, rhs: Array2)
print(common)
func GetCommonElements <T, U> (lhs: T, rhs: U) -> [T.Iterator.Element] where T: Sequence, U: Sequence, T.Iterator.Element: Equatable, T.Iterator.Element == U.Iterator.Element {
var returnArray:[T.Iterator.Element] = []
for lhsItem in lhs {
for rhsItem in rhs {
if lhsItem == rhsItem {
returnArray.append(lhsItem)
}
}
}
return returnArray
}
