Swift "change an item in an array" Noobie in swift

Question

how can i change an item in an array (Cannot convert value of type 'Int' to expected argument type 'String')

var headersSend: HTTPHeaders = [
            "changeMe": "none",
            "Accept": "application/json"
        ]
  
  headersSend[0] = "changeMe" : "Changed!" // <--- ? Cannot convert value of type 'Int' to expected argument type 'String'

That's a dictionary, not an array. I'd tend to say headersSend["changeMe"] = "Changed"] — Larme
– Larme, Commented Nov 19, 2020 at 13:09

krlbsk · Accepted Answer · 2020-11-19 13:41:04Z

1

headersSend is a dictionary, not an array. It stores key-value pairs, where key and value are both of type String.

Accessing through headersSend[0] means you want to change item at key 0. You have a compilation error because dictionary's key is not of type Int. You have to use String key instead.

That's the way we change value at specific key

dictionary[key] = newValue

In your case it would be

headersSend["changeMe"] = "Changed!"

I suggest you to read more about collection types here.

answered Nov 19, 2020 at 13:41

krlbsk

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1 Comment

dn70a Over a year ago

//It stores key-value pairs .. thank you +++++ 👍🏻

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