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

In Swift 4.2 use the remove(where:) functionality. filter isn't doing well with memory, remove(where:) does the job better.

To do what you want:

englishBooks.removeAll { !$0.nameOfBook.contains("English") }