Swift filter array of objects

Question

class book{
    var nameOfBook: String!
}

var englishBooks=[book(),book(),book()]
var arr = englishBooks.filter {
    contains($0.nameOfBook, \"rt\")
}

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Answer 1

I think this is more useful for lack of wrong typing situation.

englishBooks.filter( { $0.nameOfBook.range(of: searchText, options: .caseInsensitive) != nil}