Test two objects for inequality.
Test two objects for inequality.
true
if !(this == that), false otherwise.
Equivalent to x.hashCode
except for boxed numeric types.
Equivalent to x.hashCode
except for boxed numeric types.
For numerics, it returns a hash value which is consistent
with value equality: if two value type instances compare
as true, then ## will produce the same hash value for each
of them.
a hash value consistent with ==
Test two objects for equality.
Test two objects for equality.
true
if the receiver object is equivalent to the argument; false
otherwise.
Cast the receiver object to be of type T0
.
Cast the receiver object to be of type T0
.
Note that the success of a cast at runtime is modulo Scala's erasure semantics.
Therefore the expression 1.asInstanceOf[String]
will throw a ClassCastException
at
runtime, while the expression List(1).asInstanceOf[List[String]]
will not.
In the latter example, because the type argument is erased as part of compilation it is
not possible to check whether the contents of the list are of the requested type.
the receiver object.
Given a sequence of functions f1
, .
Given a sequence of functions f1
, ...,
fn
, return the function f1
andThen ... andThen fn
.
The given sequence of functions
...
Create a copy of the receiver object.
The constant function
Tests whether the argument (arg0
) is a reference to the receiver object (this
).
Tests whether the argument (arg0
) is a reference to the receiver object (this
).
The eq
method implements an equivalence relation on
non-null instances of AnyRef
, and has three additional properties:
x
and y
of type AnyRef
, multiple invocations of
x.eq(y)
consistently returns true
or consistently returns false
.x
of type AnyRef
, x.eq(null)
and null.eq(x)
returns false
.null.eq(null)
returns true
. When overriding the equals
or hashCode
methods, it is important to ensure that their behavior is
consistent with reference equality. Therefore, if two objects are references to each other (o1 eq o2
), they
should be equal to each other (o1 == o2
) and they should hash to the same value (o1.hashCode == o2.hashCode
).
true
if the argument is a reference to the receiver object; false
otherwise.
The equality method for reference types.
Called by the garbage collector on the receiver object when there are no more references to the object.
Called by the garbage collector on the receiver object when there are no more references to the object.
The details of when and if the finalize
method is invoked, as
well as the interaction between finalize
and non-local returns
and exceptions, are all platform dependent.
A representation that corresponds to the dynamic class of the receiver object.
A representation that corresponds to the dynamic class of the receiver object.
The nature of the representation is platform dependent.
a representation that corresponds to the dynamic class of the receiver object.
The hashCode method for reference types.
Test whether the dynamic type of the receiver object is T0
.
Test whether the dynamic type of the receiver object is T0
.
Note that the result of the test is modulo Scala's erasure semantics.
Therefore the expression 1.isInstanceOf[String]
will return false
, while the
expression List(1).isInstanceOf[List[String]]
will return true
.
In the latter example, because the type argument is erased as part of compilation it is
not possible to check whether the contents of the list are of the specified type.
true
if the receiver object is an instance of erasure of type T0
; false
otherwise.
Equivalent to !(this eq that)
.
Equivalent to !(this eq that)
.
true
if the argument is not a reference to the receiver object; false
otherwise.
Wakes up a single thread that is waiting on the receiver object's monitor.
Wakes up a single thread that is waiting on the receiver object's monitor.
Wakes up all threads that are waiting on the receiver object's monitor.
Wakes up all threads that are waiting on the receiver object's monitor.
Creates a String representation of this object.
Creates a String representation of this object. The default representation is platform dependent. On the java platform it is the concatenation of the class name, "@", and the object's hashcode in hexadecimal.
a String representation of the object.
Tupling for functions of arity 5.
Tupling for functions of arity 5. This transforms a function of arity 5 into a unary function that takes a 5-tuple of arguments.
Tupling for functions of arity 4.
Tupling for functions of arity 4. This transforms a function of arity 4 into a unary function that takes a 4-tuple of arguments.
Tupling for functions of arity 3.
Tupling for functions of arity 3. This transforms a function of arity 3 into a unary function that takes a triple of arguments.
Tupling for functions of arity 2.
Tupling for functions of arity 2. This transforms a function of arity 2 into a unary function that takes a pair of arguments.
...
...
Uncurrying for functions of arity 5.
Uncurrying for functions of arity 4.
Uncurrying for functions of arity 3.
Uncurrying for functions of arity 2.
Uncurrying for functions of arity 2. This transforms a unary function returning another unary function into a function of arity 2.
Turns a function A => Option[B]
into a PartialFunction[A, B]
.
Turns a function A => Option[B]
into a PartialFunction[A, B]
. Important note:
this transformation implies the original function will be called 2 or more
times on each logical invocation, because the only way to supply an implementation
of isDefinedAt is to call the function and examine the return value.
a function T => Option[R]
a partial function defined for those inputs where f returns Some(_) and undefined where f returns None.
PartialFunction#lift
Un-tupling for functions of arity 5.
Un-tupling for functions of arity 5. This transforms a function taking a 5-tuple of arguments into a function of arity 5 which takes each argument separately.
Un-tupling for functions of arity 4.
Un-tupling for functions of arity 4. This transforms a function taking a 4-tuple of arguments into a function of arity 4 which takes each argument separately.
Un-tupling for functions of arity 3.
Un-tupling for functions of arity 3. This transforms a function taking a triple of arguments into a ternary function which takes each argument separately.
Un-tupling for functions of arity 2.
Un-tupling for functions of arity 2. This transforms a function taking a pair of arguments into a binary function which takes each argument separately.
Currying for functions of arity 5.
Currying for functions of arity 5.
Use f.curried
instead
Currying for functions of arity 4.
Currying for functions of arity 4.
Use f.curried
instead
Currying for functions of arity 3.
Currying for functions of arity 3.
...
...
Use f.curried
instead
Currying for functions of arity 2.
Currying for functions of arity 2. This transforms a function of arity 2 into a a unary function returning another unary function.
...
...
Use f.curried
instead
A module defining utility methods for higher-order functional programming.
1.0, 29/11/2006