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package ii_collections | |
fun example1(list: List<Int>) { | |
// If a lambda has exactly one parameter, that parameter can be accessed as 'it' | |
val positiveNumbers = list.filter { it > 0 } | |
val squares = list.map { it * it } | |
} | |
fun Shop.getCitiesCustomersAreFrom(): Set<City> { | |
// Return the set of cities the customers are from | |
todoCollectionTask() | |
} | |
fun Shop.getCustomersFrom(city: City): List<Customer> { | |
// Return a list of the customers who live in the given city | |
todoCollectionTask() | |
} | |