Check if one element in array is contained in string

Question

let preferredCountryCurrenciesSymbols = ["USD", "EUR", "GBP", "HKD", "JPY", "RUB", "AUD", "CAD"]
let currency = "USDT"

I need code which loop the array and search in the string for .contains

I've tried with this, but it's not finding it

Check if array contains part of a string in Swift?

So basically the function I need is -> Bool have it or don't have it.

What result do you want? Do you want the index in `preferredCountryCurrenciesSymbols` for the value found inside `currency`? Do you just want to know if any value in the array is found inside `currency`? Show what you actually tried and clearly explain what result you got versus what you want. — rmaddy, Jul 14 '19 at 22:40

score 0 · Answer 1 · answered Jul 14 '19 at 22:45

0

You can try

let found = preferredCountryCurrenciesSymbols.filter { currency.contains($0)}.count != 0 // can use isEmpty also
print(found)

answered Jul 14 '19 at 22:45

Shehata Gamal

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score 0 · Accepted Answer · answered Jul 14 '19 at 22:47

0

The question you linked is the opposite of what you need.

You can find if any value in the array is contained within currency:

let preferredCountryCurrenciesSymbols = ["USD", "EUR", "GBP", "HKD", "JPY", "RUB", "AUD", "CAD"]
let currency = "USDT"
if preferredCountryCurrenciesSymbols.first(where: { currency.contains($0) }) != nil {
    print("found")
} else {
    print("not found")
}

answered Jul 14 '19 at 22:47

rmaddy

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You could use `contains(where:)` instead of `first(where:) != nil`. P.S. the downvote wasn't mine and not sure why anyone used one. – Dávid Pásztor Jul 14 '19 at 23:00

score 0 · Answer 3 · answered Jul 15 '19 at 02:48

0

var res = preferredCountryCurrenciesSymbols.contains { element in
                return element == currency
          }

answered Jul 15 '19 at 02:48

Yongjoon

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While this code snippet may be the solution, including an explanation really helps to improve the quality of your post. It will be helpful for future users as well. – Sangam Belose Jul 15 '19 at 05:57

score 0 · Answer 4 · answered Jul 15 '19 at 05:29

0

You can simply use contains(where:) to get that working.

if preferredCountryCurrenciesSymbols.contains(where: { currency.contains($0) }) {
    print("currency found...")
} else {
    print("currency not found...")
}

answered Jul 15 '19 at 05:29

PGDev

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Check if one element in array is contained in string

4 Answers4