Swift: how to assign a string array to the text property of an array of UITextFields?

Question

If I have 2 string arrays, it'd be fairly simply to assign one to the other in one line of code (w/o having to use a for-loop):

var sArray1 = ["A","B","C"]
var sArray2 = sArray1

However, I'd like to do something similar with an array of UITextFields, but can't figure it out. I feel like it should look something like this:

var sArray1 = ["A","B","C"]
var sArray2 = [textField1, textField2, textField3]
sArray2.text = sArray1

Sweeper · Accepted Answer · 2018-12-29 03:17:42Z

3

[UITextField] does not have a text property, so you can't use sArray2.text.

You can zip and then forEach:

zip(sArray2, sArray1).forEach { $0.0.text = $0.1 }

answered Dec 29, 2018 at 3:17

Sweeper

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2 Comments

Kayan Over a year ago

What do you mean that [UITextField] doesn't have a text property? I write things like nameOfTextField.text = "something" all the time. Or are you specifically referring to an array of UITextFields not having that property? It seems like there should be a way to .map the strings to each of the fields in the field array...

Sweeper Over a year ago

@Kayan Array does not have a text property, even though its elements do. You could map the textfields to their text properties, but then you can't set their texts. Because you want to change the textfield's state, so you should use forEach.

Bappaditya · Accepted Answer · 2018-12-29 03:39:04Z

0

An alternative solution with enumerated(),

let sArray1 = ["A","B","C"]
let sArray2 = [textField1, textField2, textField3]

for (index, element) in sArray2.enumerated() {
    element.text = sArray1[index]
}
print(sArray2)

Output:

[<UITextField: 0x7fd885051200; frame = (0 0; 0 0); text = 'A'; opaque = NO; layer = <CALayer: 0x6000024393e0>>, <UITextField: 0x7fd885037a00; frame = (0 0; 0 0); text = 'B'; opaque = NO; layer = <CALayer: 0x6000024394e0>>, <UITextField: 0x7fd88508f400; frame = (0 0; 0 0); text = 'C'; opaque = NO; layer = <CALayer: 0x6000024395e0>>]

answered Dec 29, 2018 at 3:39

Bappaditya

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