CODEWITHSUNDEEP
swiftstringswift3
Elio Martínez Bejarano
Elio Martínez Bejarano

Reputation: 67

Add character to specific index in string - swift 3

I'm trying to insert a specific character in a specific index in a string lets say 

var text = "1234567890"

i want that variable to add the country code of the phone number:

text = text.replacingCharacters(in: text.startIndex..<text.index(after: text.startIndex), with: "+593\\U00a0")

Then i have to format that string into something like this: "+593 23-456-7890", so i have to insert "-" into the index 8 and 11 but i have only found answers with swift 2.0. Strings had a method called insert that doesn't exists anymore. i've tried this:

text = text.insert("-", at: text.index(text.startIndex, offsetBy: +8))

but I have the following error "Cannot assign value of type '()' to type 'String'

Upvotes: 2

Views: 5515

Answers (1)

Sumner Evans
Sumner Evans

Reputation: 9155

Insert operates on the actual string itself. Therefore, there is no need to assign back to it. You can just use the following:

text.insert("-", at: text.index(text.startIndex, offsetBy: +8))

More information about inserting into a string can be found in the Swift documentation from Apple.

Upvotes: 10

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