SWIFT – Increases the simpler method of adding data points in Firebase?

Firebase {
 clickedCounter: 0< br />}

@IBAction func plus(sender: UIButton) {
 FIRDatabase.database() .reference().child("clickedCounter").observeEventType(.Value) {(snap: FIRDataSnapshot) in
 let value = FIRDatabase.database().reference().child("clickedCounter") as? NSNumber 
 let increment = ((value?.intValue)! + ((1 as? NSNumber)?.intValue)!) as? NSNumber
 FIRDatabase.database().reference().child("clickedCounter ").setValue()
 self.clickLabel.text = snap.value?.description as String!
 }
 }

@IBAction func plus(sender: UIButton) {
 FIRDatabase.database().reference().child("clickedCounter").observeEventType(.Value) {(snap : FIRDataSnapshot) in
 FIRDatabase.database().reference().child("clickedCounter").setValue(( snap.value?.description)! + 1)
 self.clickedLabel.text = snap.value?.description as! String!
 }
 }

counterRef.observeSingleEventOfType(.Value, withBlock: {snapshot in
 let valString = snapshot.value
 var value = valString.intValue
 value = value + 1
 counterRef.setValue("\(value)") 
})

I have trouble adding a piece of data to Firebase.

Firebase {
 clickedCounter: 0
 }

This is my code:

@IBAction func plus(sender: UIButton) {
 FIRDatabase.database().reference( ).child("clickedCounter").observeEventType(.Value) {(snap: FIRDataSnapshot) in
 let value = FIRDatabase.database().reference().child("clickedCounter") as? NSNumber
 let increment = ((value?.intValue)! + ((1 as? NSNumber)?.intValue)!) as? NSNumber
 FIRDatabase.database().reference().child("clickedCounter"). setValue()
 self.clickLabel.text = snap.value?.description as String!
 }
 }

I also tried:

@IBAction func plus(sender: UIButton) {
 FIRDatabase.database().reference().child("clickedCounter").observeEventType(.Value) {(snap: FIRDataSnapshot) in
 FIRDatabase. database().reference().child("clickedCounter").setValue((snap.value?.description)! + 1)
 self.clickedLabel.text = snap.value?.description as! String!< br /> }
 }

My first warning is:

The conversion from Int32 to NSNumber always fails

From NSNumber to NSNumber The conditional actor always succeeds

The conversion from FIRDatabaseReference to NSNumber always fails

After I run it, I get an error about let increment…: Thread 1: EXC_BAD_INSTRUCTION

The second error for me is:

Binary operators cannot be applied to operands of type String and Int

>When I think I’m in Firebase I am confused about my snap.value when I define it as an Int. .description is a string.
>Why do I get a warning when things always succeed?
>Is there a better way?

Thank you!

Why not (v2.x Firebase code, but you get it)

counterRef .observeSingleEventOfType(.Value, withBlock: {snapshot in
 let valString = snapshot.value
 var value = valString.intValue
 value = value + 1
 counterRef.setValue("\ (value)") 
})

If multiple users update frequently, you can also use transaction blocks.