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#getting-started
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josephivie
12/02/2016, 8:57 PM Copy code
fun <T> List<T>.hasDuplicate():Boolean{
val set = HashSet<T>()
return any { !set.add(it) }
}josephivie
12/02/2016, 8:57 PMfun <T> List<T>.hasDuplicate():Boolean{
val set = HashSet<T>()
return any { !set.add(it) }
}