``` fun sendContacts contacts Set lt Contact gt contacts map kotlinlang #announcements

``` fun sendContacts(contacts: Set<Contact>)...

elizarov

04/07/2018, 2:23 PM

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fun sendContacts(contacts: Set<Contact>) {
    contacts.map(Contact::getId).toSet().takeIf { it.isNotEmpty() }?.let { send(it) }
}

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