Packages

  • package root

    This is the documentation for the Scala standard library.

    This is the documentation for the Scala standard library.

    Package structure

    The scala package contains core types like Int, Float, Array or Option which are accessible in all Scala compilation units without explicit qualification or imports.

    Notable packages include:

    Other packages exist. See the complete list on the right.

    Additional parts of the standard library are shipped as separate libraries. These include:

    • scala.reflect - Scala's reflection API (scala-reflect.jar)
    • scala.xml - XML parsing, manipulation, and serialization (scala-xml.jar)
    • scala.collection.parallel - Parallel collections (scala-parallel-collections.jar)
    • scala.util.parsing - Parser combinators (scala-parser-combinators.jar)
    • scala.swing - A convenient wrapper around Java's GUI framework called Swing (scala-swing.jar)

    Automatic imports

    Identifiers in the scala package and the scala.Predef object are always in scope by default.

    Some of these identifiers are type aliases provided as shortcuts to commonly used classes. For example, List is an alias for scala.collection.immutable.List.

    Other aliases refer to classes provided by the underlying platform. For example, on the JVM, String is an alias for java.lang.String.

    Definition Classes
    root
  • package scala

    Core Scala types.

    Core Scala types. They are always available without an explicit import.

    Definition Classes
    root
  • package collection
    Definition Classes
    scala
  • object StringOps
    Definition Classes
    collection
  • WithFilter

class WithFilter extends AnyRef

A lazy filtered string. No filtering is applied until one of foreach, map or flatMap is called.

Source
StringOps.scala
Linear Supertypes
AnyRef, Any
Type Hierarchy
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. WithFilter
  2. AnyRef
  3. Any
Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
  1. Hide All
  2. Show All
Visibility
  1. Public
  2. All

Instance Constructors

  1. new WithFilter(p: (Char) => Boolean, s: String)

Value Members

  1. def flatMap(f: (Char) => String): String

    Builds a new string by applying a function to all chars of this filtered string and using the elements of the resulting Strings.

    Builds a new string by applying a function to all chars of this filtered string and using the elements of the resulting Strings.

    f

    the function to apply to each char.

    returns

    a new string resulting from applying the given string-valued function f to each char of this string and concatenating the results.

  2. def flatMap[B](f: (Char) => IterableOnce[B]): immutable.IndexedSeq[B]

    Builds a new collection by applying a function to all chars of this filtered string and using the elements of the resulting collections.

    Builds a new collection by applying a function to all chars of this filtered string and using the elements of the resulting collections.

    f

    the function to apply to each char.

    returns

    a new collection resulting from applying the given collection-valued function f to each char of this string and concatenating the results.

  3. def foreach[U](f: (Char) => U): Unit

    Apply f to each element for its side effects.

    Apply f to each element for its side effects. Note: [U] parameter needed to help scalac's type inference.

  4. def map(f: (Char) => Char): String

    Builds a new string by applying a function to all chars of this filtered string.

    Builds a new string by applying a function to all chars of this filtered string.

    f

    the function to apply to each char.

    returns

    a new string resulting from applying the given function f to each char of this string and collecting the results.

  5. def map[B](f: (Char) => B): immutable.IndexedSeq[B]

    Builds a new collection by applying a function to all chars of this filtered string.

    Builds a new collection by applying a function to all chars of this filtered string.

    f

    the function to apply to each char.

    returns

    a new collection resulting from applying the given function f to each char of this string and collecting the results.

  6. def withFilter(q: (Char) => Boolean): WithFilter

    Creates a new non-strict filter which combines this filter with the given predicate.