Remove complete element from Array Swift - ios

Question

Im reading documents from firebase and putting them into an Array. The output of my array is:
[MainApp.Message(name: Optional("Bluesona"), userId:
Optional("7epbTeafCAS51ctDxWWt0xIAWN03"), msg: Optional(""), creatAt:
Optional(1535028200082), latitude: Optional("0.00"), longitude:
Optional("0.00")), MainApp.Message(name: Optional("Oliver"), userId:
Optional("7epbTeafCAS51ctDxWWt0xIAWN03"), msg: Optional(""), creatAt:
Optional(1537440120260), latitude: Optional("54.976663"), longitude:
Optional("-7.732037")), MainApp.Message(name: Optional("Oliver"),
userId: Optional("7epbTeafCAS51ctDxWWt0xIAWN03"), msg: Optional(""),
creatAt: Optional(1537639139566), latitude: Optional("54.976726"),
longitude: Optional("-7.731986"))]
How can I then manipulate my array to only display items which have name "Bluesona"?
Here is the code where I'm creating my array
firebaseDB.collection("message").document(key).collection("messages").getDocuments() { (querySnapshot, err) in
if let err = err {
print("Error getting documents: \(err)")
}
else {
self.dataArr.removeAll()
for document in querySnapshot!.documents {
print("\(document.documentID) => \(document.data())")
let msgdata = document.data() as! [String:Any]
var msgObj = Message()
if let name = msgdata["name"] as? String {
msgObj.name = name
}
if let latitude = msgdata["latitude"] as? String {
msgObj.latitude = latitude
}
if let long = msgdata["longitude"] as? String {
msgObj.longitude = long
}
if let uid = msgdata["userId"] as? String {
msgObj.userId = uid
}
if let time = msgdata["createdAt"] as? Int {
msgObj.creatAt = time
}
self.dataArr.append(msgObj)
// self.dataArr.append(document.data() as [String:Any])
}
self.dataArr = self.dataArr.sorted(by: {$0.creatAt < $1.creatAt })
self.tblMessage.reloadData()
if self.dataArr.count < 1 {
print("No Messages")
}
else{
//self.tblMessage.scrollToRow(at: IndexPath(row: self.dataArr.count - 1, section: 0), at: .bottom, animated: true)
print(self.dataArr)
}
}
}

Answer 1

You can use filter to achieve your goals.
...
self.dataArr = self.dataArr.sorted(by: {$0.creatAt < $1.creatAt })
self.dataArr = dataArr.filter { $0.name == "Bluesona"}
self.tblMessage.reloadData()
...
Or you can also use removeAll(where:) introduced in Swift4.2:
...
self.dataArr = self.dataArr.sorted(by: {$0.creatAt < $1.creatAt })
self.dataArr.removeAll(where: { $0.name != "Bluesona"})
self.tblMessage.reloadData()
...