CODEWITHSUNDEEP
iosswift
NotABot
NotABot

Reputation: 526

Swift Filter array containing array of Strings

I want to filter an array which contains an array of Strings.

My code is:

if(!(searchString?.isEmpty)!) {
    shouldShowSearchResults = true

    // Filter the data array and get only those countries that match the search text.
    filteredPlazaDictionary = plazaDictionary.filter({ (match) -> Bool in
        let matchText: NSString = match[1] as NSString
        return (matchText.range(of: searchString!, options: NSString.CompareOptions.caseInsensitive).location) != NSNotFound
    })
}

Here, filteredPlazaDictionary[[String]] and plazaDictionary[[String]] and I want to match every array[1] inside plazaDictionary with searchString. Help please.

Upvotes: 0

Views: 608

Answers (1)

Fogmeister
Fogmeister

Reputation: 77621

I would write this something like this I think...

// make it a function that takes everything it needs and returns a result array
func filteredCountryArray(countryArray: [[String]], searchString: String) -> [[String]] {
    guard !searchString.isEmpty else {
        // search string is blank so return entire array...
        return countryArray
    }

    // Filter the data array and get only those countries that match the search text.
    return countryArray.filter { match in
        // check array is long enough to get [1] out of it
        guard match.count >= 2 else {
            return false
        }

        let matchText = match[1]
        return matchText.range(of: searchString, options: .caseInsensitive) != nil
    }
}

plazaDictionary is a very odd name to give to an array. It is an array, not a dictionary.

What you should probably do here is create some data objects (structs, classes, enums, etc...) that hold the data in a better format than a nested array.

This should do what you want for now though.

EDIT

Having another think about it, I would also change the serachString and the array into input parameters...

Upvotes: 3

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