Question 66836 in IOS Swift Question posted in
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Swift filter a array struct by an array of search words – Ios swift

I have created an array struct to house my values used in a list. Now I want to be able to search this list and every time the user makes a blank space it should be viewed by the program as two different searchwords that should both be met.
I have successfully created a function to get the searchwords but I don’t really get how to now filter my stuctArray by all the searchWords.

let searchWords = findAllSearchResutsRecursive(searchWord) //example ["A", "B", ,"C"]

let filteredArray = listArray.filter {
    for word in searchWords {
        $0.firstname!.capitalized.contains(word.capitalized) ||
        $0.lastname!.capitalized.contains(word.capitalized) ||
        $0.id!.capitalized.contains(word.capitalized) ||
        $0.city!.capitalized.contains(word.capitalized)
    }
}

To clarify, if the searchWords is ["A", "N"] and one of the participants (people in the list) has the firstname "Anna" but nothing else match the search I still want to show it.

Alternatively is if it would be better to convert the SearchWords to a set and in that way somehow filter them all at the same time.

This is errors I get:
enter image description here

Tags:

2

Answers


  1. 0

    You could rewrite it like this:

    let searchWords = findAllSearchResutsRecursive(searchWord) //example ["A", "B", ,"C"]

let filteredArray = listArray.filter {
    var matchFound = false
    for word in searchWords {
        if (
          $0.firstname!.capitalized.contains(word.capitalized) ||
          $0.lastname!.capitalized.contains(word.capitalized) ||
          $0.id!.capitalized.contains(word.capitalized) ||
          $0.city!.capitalized.contains(word.capitalized)
        ) {
            matchFound = true
          }
    }
    return matchFound
}
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  2. 0

    The outer filter function needs to return a boolean value. To not iterate over all remaining words if a match is found you could use:

    let filteredArray = listArray.filter {
    var result = false
    for word in searchWords {
        
        // check if any property contains the word
        if $0.firstname!.capitalized.contains(word.capitalized) ||
        $0.lastname!.capitalized.contains(word.capitalized) ||
        $0.id!.capitalized.contains(word.capitalized) ||
            $0.city!.capitalized.contains(word.capitalized){
            // set the result and break the loop
            result = true
            break
        }
    }
    // return the result
    return result
}
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