WebThat’s why Scala collections give ordered alternatives for all collection types. For instance, the ordered alternative for HashSet is LinkedHashSet. Sub-collection retrieval operations tail, init, slice, take, drop, takeWhile, dropWhile, filter, filterNot, withFilter. WebDec 14, 2024 · Method Definition: (First_Integer_Value).compare (Second_Integer_Value) Return Type: It returns 0 if the first integer value is equal to the second integer value, 1 if the first one is greater than the second one and finally -1 if the first one is less than the second one. Example #1: Scala object GfG { def main (args:Array [String]) {
Scala常见高阶函数说明和使用
WebDec 7, 2024 · The dropWhile method drops elements as long as the predicate you supply returns true: scala> val y = x.dropWhile (_ < 6) y: List [Int] = List (6, 7, 8, 9, 10) The dropRight method works like drop, but starts at the end of the collection and works forward, dropping elements from the end of the sequence: WebAug 10, 2024 · The Scala Array class is a mutable, indexed, sequential collection. Unlike the Scala ArrayBuffer class, the Array class is only mutable in the sense that its existing elements can be modified; it can’t be resized like ArrayBuffer. If you’re coming to … histone 3.1
Scala collections classes: Methods, organized by category
WebMay 15, 2024 · Facilities were clean and odor free. Activities were well coordinated. Holiday celebrations with live entertainment, and special catered food were planned well in advance to allow families to enjoy time together. Special thanks to the nuns, and clergy. Gods … Scala List dropWhile () method with example. The dropWhile () method is utilized to drops the longest prefix of elements that satisfies the stated condition. Method Definition: def dropWhile (p: (A) => Boolean): List [A] Return Type: It returns all the elements of the list except the dropped ones. Webdef dropWhile(p: (B) => Boolean): View [B] Drops longest prefix of elements that satisfy a predicate. def empty: View [B] The empty iterable of the same type as this iterable def exists(p: (B) => Boolean): Boolean Tests whether a predicate holds for at least one element of this view. def filter(pred: (B) => Boolean): View [B] histone ab test