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Trait scala.collection.mutable.Growable

Companion object • Source code

trait Growable[-A] extends Clearable

This trait forms part of collections that can be augmented using a += operator and that can be cleared of all elements using a clear method.

Supertypes
trait Clearable
class Object
trait Matchable
class Any
Known subtypes
64 types
trait Buffer[A]
class AbstractBuffer[A]
class ArrayBuffer[A]
class ArrayDeque[A]
class Queue[A]
class Stack[A]
class ListBuffer[A]
class UnrolledBuffer[T]
trait IndexedBuffer[A]
trait Builder[A, To]
class Builder[K, V]
class GrowableBuilder[Elem, To]
trait MapOps[K, V, CC, C]
class TrieMap[K, V]
class AnyRefMap[K, V]
class CollisionProofHashMap[K, V]
class HashMap[K, V]
class LinkedHashMap[K, V]
class ListMap[K, V]
class LongMap[V]
trait Map[K, V]
trait Map[K, V]
class AbstractMap[K, V]
class WithDefault[K, V]
class WithDefault[K, V]
class OpenHashMap[Key, Value]
class TreeMap[K, V]
class SystemProperties
trait MultiMap[K, V]
trait SeqMap[K, V]
trait SortedMap[K, V]
trait SortedMapOps[K, V, CC, C]
class PriorityQueue[A]
trait ReusableBuilder[Elem, To]
class VectorBuilder[A]
class AnyRefMapBuilder[K, V]
class ArrayBuilder[T]
class ofBoolean
class ofByte
class ofChar
class ofDouble
class ofFloat
class ofInt
class ofLong
class ofRef[T]
class ofShort
class ofUnit
class ImmutableBuilder[A, C]
class LongMapBuilder[V]
class StringBuilder
trait SetOps[A, CC, C]
class HashSet[A]
class LinkedHashSet[A]
trait Set[A]
class AbstractSet[A]
class BitSet
class TreeSet[A]
trait SortedSet[A]
trait SortedSetOps[A, CC, C]
class Accumulator[A, CC, C]
class AnyAccumulator[A]
class DoubleAccumulator
class IntAccumulator
class LongAccumulator

Abstract methods

Source
def addOne(elem: A): Growable[A]

Adds a single element to this growable collection.

Value parameters
elem

the element to add.
Returns

the growable collection itself

Concrete methods

Source@inline
final def ++=(xs: IterableOnce[A]): Growable[A]

Alias for addAll

Source@inline
final def +=(elem: A): Growable[A]

Alias for addOne

Source
def addAll(xs: IterableOnce[A]): Growable[A]

Adds all elements produced by an IterableOnce to this growable collection.

Value parameters
xs

the IterableOnce producing the elements to add.
Returns

the growable collection itself.

Source
def knownSize: Int

Returns

The number of elements in the collection under construction, if it can be cheaply computed, -1 otherwise. The default implementation always returns -1.

Inherited methods

Source
def clear(): Unit

Clears the collection's contents. After this operation, the collection is empty.

Inherited from Clearable

© 2002-2022 EPFL, with contributions from Lightbend.
Licensed under the Apache License, Version 2.0.
https://scala-lang.org/api/3.1.1/scala/collection/mutable/Growable.html