Showing optional double number on a label

Question

I'm trying to show a double number on a label. But it shows as an optional. I can't unwrap it using "!" because some of the data is nil.

How can I make the "Optional(...)" text not show up?

This is how it looks:

let row = elementArray[indexPath.row]
mPoint.text = String(row.meltPoint) //Optional(2070.0)

What do you want to happen if the data is nil? – NobodyNada Sep 28 '16 at 21:29 — NobodyNada, Sep 28 '16 at 21:29

score 2 · Accepted Answer · edited Sep 28 '16 at 23:50

2

Use if let to unwrap optional values:

let row = elementArray[indexPath.row]
if let myNumber = row.meltPoint {
    mPoint.text = "\(myNumber)"
} else {
     mPoint.text = "N/A"
}

edited Sep 28 '16 at 23:50

NobodyNada

answered Sep 28 '16 at 21:25

Arashk

in the else just pass your custom string to it I'm updating the answer so you can see – Arashk Sep 28 '16 at 22:08
Thank you very much – Nyxx Sep 29 '16 at 13:28

1 Answers1