object First extends FirstInstances with Serializable
Provides a set of operations and typeclass instances needed to use First instances.
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Value Members
- final def !=(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- final def ##: Int
- Definition Classes
- AnyRef → Any
- final def ==(arg0: Any): Boolean
- Definition Classes
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- def aggregator[T]: FirstAggregator[T]
Returns an Aggregator that selects the first instance of
T
in the aggregated stream. - final def asInstanceOf[T0]: T0
- Definition Classes
- Any
- def clone(): AnyRef
- Attributes
- protected[lang]
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- @throws(classOf[java.lang.CloneNotSupportedException]) @native()
- final def eq(arg0: AnyRef): Boolean
- Definition Classes
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- def equals(arg0: AnyRef): Boolean
- Definition Classes
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- def finalize(): Unit
- Attributes
- protected[lang]
- Definition Classes
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- Annotations
- @throws(classOf[java.lang.Throwable])
- def firstSemigroup[T]: Semigroup[T] with Band[T]
Returns a Semigroup instance with a
plus
implementation that always returns the first (ie, the left)T
argument.Returns a Semigroup instance with a
plus
implementation that always returns the first (ie, the left)T
argument.This semigroup's
sumOption
is efficient; it only selects the head of theTraversableOnce
instance, leaving the rest untouched.- Definition Classes
- FirstInstances
- final def getClass(): Class[_ <: AnyRef]
- Definition Classes
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- Annotations
- @native()
- def hashCode(): Int
- Definition Classes
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- Annotations
- @native()
- final def isInstanceOf[T0]: Boolean
- Definition Classes
- Any
- final def ne(arg0: AnyRef): Boolean
- Definition Classes
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- final def notify(): Unit
- Definition Classes
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- @native()
- final def notifyAll(): Unit
- Definition Classes
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- @native()
- implicit def semigroup[T]: Semigroup[First[T]] with Band[First[T]]
- final def synchronized[T0](arg0: => T0): T0
- Definition Classes
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- def toString(): String
- Definition Classes
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- final def wait(): Unit
- Definition Classes
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- Annotations
- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long, arg1: Int): Unit
- Definition Classes
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- Annotations
- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException]) @native()