How not to append item from UITextField to array if empty or blank spaces - Swift

Question

This is my very first question on Stack Overflow so I hope I'm following the rules correctly.

I'm making a To-Do list app in Swift and I'm trying to prevent blank or empty spaces from being appended to the table.

My UITextField:

@IBOutlet weak var item: UITextField!

My addItem button:

@IBAction func addItem(sender: AnyObject) {

    if item.text.isEmpty {
    //Do not append item to array
}

Thank you for any help!

Answer 1

let trimmedString = item.text.stringByTrimmingCharactersInSet(NSCharacterSet.whitespaceCharacterSet())

if countElements(trimmedString) > 0 {
    // append the item
}

The more thorough solution might be to use the UItextFieldDelegate protocol and prevent people from typing blank spaces in the first place. Hard to do camel casing on mobile, so I apologize for typos.

Answer 2

You can do this

if item.text.stringByTrimmingCharactersInSet(NSCharacterSet.whitespaceCharacterSet()) != "" {
    //addNew()
}

stringByTrimmingCharactersInSet : Returns a new string made by removing from both ends of the receiver characters contained in a given character set. The parameter NSCharacterSet.whitespaceCharacterSet removes the whitespace from both ends.