Utility methods for operating on arrays. For example:
val a = Array(1, 2)val b = Array.ofDim[Int](2)val c = Array.concat(a, b)where the array objectsa,b andc have respectively the valuesArray(1, 2),Array(0, 0) andArray(1, 2, 0, 0).
Attributes
- Companion
- class
- Source
- Array.scala
- Graph
- Supertypes
- Self type
- Array.type
Members list
Type members
Classlikes
Attributes
- Source
- Array.scala
- Supertypes
Value members
Concrete methods
Creates an array with given elements.
Creates an array with given elements.
Value parameters
- xs
the elements to put in the array
Attributes
- Returns
an array containing all elements from xs.
- Source
- Array.scala
Creates an array ofBoolean objects
Creates an array ofByte objects
Creates an array ofShort objects
Creates an array ofChar objects
Creates an array ofInt objects
Creates an array ofLong objects
Creates an array ofFloat objects
Creates an array ofDouble objects
Creates an array ofUnit objects
Concatenates all arrays into a single array.
Concatenates all arrays into a single array.
Value parameters
- xss
the given arrays
Attributes
- Returns
the array created from concatenating
xss- Source
- Array.scala
Copy one array to another.
Copy one array to another. Equivalent to Java'sSystem.arraycopy(src, srcPos, dest, destPos, length), except that this also works for polymorphic and boxed arrays.
Note that the passed-indest array will be modified by this call.
Value parameters
- dest
destination array.
- destPos
starting position in the destination array.
- length
the number of array elements to be copied.
- src
the source array.
- srcPos
starting position in the source array.
Attributes
- See also
java.lang.System#arraycopy- Source
- Array.scala
Copy one array to another, truncating or padding with default values (if necessary) so the copy has the specified length.
Copy one array to another, truncating or padding with default values (if necessary) so the copy has the specified length. The new array can have a different type than the original one as long as the values are assignment-compatible. When copying between primitive and object arrays, boxing and unboxing are supported.
Equivalent to Java'sjava.util.Arrays.copyOf(original, newLength, newType), except that this works for all combinations of primitive and object arrays in a single method.
Attributes
- See also
java.util.Arrays#copyOf- Source
- Array.scala
Copy one array to another, truncating or padding with default values (if necessary) so the copy has the specified length.
Copy one array to another, truncating or padding with default values (if necessary) so the copy has the specified length.
Equivalent to Java'sjava.util.Arrays.copyOf(original, newLength), except that this works for primitive and object arrays in a single method.
Attributes
- See also
java.util.Arrays#copyOf- Source
- Array.scala
Returns an array of length 0
Compare two arrays per element.
Compare two arrays per element.
A more efficient version ofxs.sameElements(ys).
Note that arrays are invariant in Scala, but it may be sound to cast an array of arbitrary reference type toArray[AnyRef]. Arrays on the JVM are covariant in their element type.
Array.equals(xs.asInstanceOf[Array[AnyRef]], ys.asInstanceOf[Array[AnyRef]])
Value parameters
- xs
an array of AnyRef
- ys
an array of AnyRef
Attributes
- Returns
true if corresponding elements are equal
- Source
- Array.scala
Returns an array that contains the results of some element computation a number of times.
Returns an array that contains the results of some element computation a number of times.
Note that this means thatelem is computed a total of n times:
scala> Array.fill(3){ math.random }res3: Array[Double] = Array(0.365461167592537, 1.550395944913685E-4, 0.7907242137333306)Value parameters
- elem
the element computation
- n
the number of elements desired
Attributes
- Returns
an Array of size n, where each element contains the result of computing
elem.- Source
- Array.scala
Returns a two-dimensional array that contains the results of some element computation a number of times.
Returns a two-dimensional array that contains the results of some element computation a number of times.
Value parameters
- elem
the element computation
- n1
the number of elements in the 1st dimension
- n2
the number of elements in the 2nd dimension
Attributes
- Source
- Array.scala
Returns a three-dimensional array that contains the results of some element computation a number of times.
Returns a three-dimensional array that contains the results of some element computation a number of times.
Value parameters
- elem
the element computation
- n1
the number of elements in the 1st dimension
- n2
the number of elements in the 2nd dimension
- n3
the number of elements in the 3rd dimension
Attributes
- Source
- Array.scala
Returns a four-dimensional array that contains the results of some element computation a number of times.
Returns a four-dimensional array that contains the results of some element computation a number of times.
Value parameters
- elem
the element computation
- n1
the number of elements in the 1st dimension
- n2
the number of elements in the 2nd dimension
- n3
the number of elements in the 3rd dimension
- n4
the number of elements in the 4th dimension
Attributes
- Source
- Array.scala
Returns a five-dimensional array that contains the results of some element computation a number of times.
Returns a five-dimensional array that contains the results of some element computation a number of times.
Value parameters
- elem
the element computation
- n1
the number of elements in the 1st dimension
- n2
the number of elements in the 2nd dimension
- n3
the number of elements in the 3rd dimension
- n4
the number of elements in the 4th dimension
- n5
the number of elements in the 5th dimension
Attributes
- Source
- Array.scala
Build an array from the iterable collection.
Build an array from the iterable collection.
scala> val a = Array.from(Seq(1, 5))val a: Array[Int] = Array(1, 5)scala> val b = Array.from(Range(1, 5))val b: Array[Int] = Array(1, 2, 3, 4)Value parameters
- it
the iterable collection
Attributes
- Returns
an array consisting of elements of the iterable collection
- Source
- Array.scala
Returns an array containing repeated applications of a function to a start value.
Returns an array containing repeated applications of a function to a start value.
Value parameters
- f
the function that is repeatedly applied
- len
the number of elements returned by the array
- start
the start value of the array
Attributes
- Returns
the array returning
lenvalues in the sequencestart, f(start), f(f(start)), ...- Source
- Array.scala
Returns a newscala.collection.mutable.ArrayBuilder.
Creates array with given dimensions
Creates a 2-dimensional array
Creates a 3-dimensional array
Creates a 4-dimensional array
Creates a 5-dimensional array
Returns an array containing a sequence of increasing integers in a range.
Returns an array containing a sequence of increasing integers in a range.
Value parameters
- end
the end value of the array, exclusive (in other words, this is the first valuenot returned)
- start
the start value of the array
Attributes
- Returns
the array with values in range
start, start + 1, ..., end - 1up to, but excluding,end.- Source
- Array.scala
Returns an array containing equally spaced values in some integer interval.
Returns an array containing equally spaced values in some integer interval.
Value parameters
- end
the end value of the array, exclusive (in other words, this is the first valuenot returned)
- start
the start value of the array
- step
the increment value of the array (may not be zero)
Attributes
- Returns
the array with values in
start, start + step, ...up to, but excludingend- Source
- Array.scala
Returns an array containing values of a given function over a range of integer values starting from 0.
Returns an array containing values of a given function over a range of integer values starting from 0.
Value parameters
- f
The function computing element values
- n
The number of elements in the array
Attributes
- Returns
An
Arrayconsisting of elementsf(0),f(1), ..., f(n - 1)- Source
- Array.scala
Returns a two-dimensional array containing values of a given function over ranges of integer values starting from0.
Returns a two-dimensional array containing values of a given function over ranges of integer values starting from0.
Value parameters
- f
The function computing element values
- n1
the number of elements in the 1st dimension
- n2
the number of elements in the 2nd dimension
Attributes
- Source
- Array.scala
Returns a three-dimensional array containing values of a given function over ranges of integer values starting from0.
Returns a three-dimensional array containing values of a given function over ranges of integer values starting from0.
Value parameters
- f
The function computing element values
- n1
the number of elements in the 1st dimension
- n2
the number of elements in the 2nd dimension
- n3
the number of elements in the 3rd dimension
Attributes
- Source
- Array.scala
Returns a four-dimensional array containing values of a given function over ranges of integer values starting from0.
Returns a four-dimensional array containing values of a given function over ranges of integer values starting from0.
Value parameters
- f
The function computing element values
- n1
the number of elements in the 1st dimension
- n2
the number of elements in the 2nd dimension
- n3
the number of elements in the 3rd dimension
- n4
the number of elements in the 4th dimension
Attributes
- Source
- Array.scala
Returns a five-dimensional array containing values of a given function over ranges of integer values starting from0.
Returns a five-dimensional array containing values of a given function over ranges of integer values starting from0.
Value parameters
- f
The function computing element values
- n1
the number of elements in the 1st dimension
- n2
the number of elements in the 2nd dimension
- n3
the number of elements in the 3rd dimension
- n4
the number of elements in the 4th dimension
- n5
the number of elements in the 5th dimension
Attributes
- Source
- Array.scala
Called in a pattern match like{ case Array(x,y,z) => println('3 elements')}.
Called in a pattern match like{ case Array(x,y,z) => println('3 elements')}.
Value parameters
- x
the selector value
Attributes
- Returns
sequence wrapped in ascala.Some, if
xis an Array, otherwiseNone- Source
- Array.scala
Concrete fields
Attributes
- Source
- Array.scala
Attributes
- Source
- Array.scala
Attributes
- Source
- Array.scala
Attributes
- Source
- Array.scala
Attributes
- Source
- Array.scala
Attributes
- Source
- Array.scala
Attributes
- Source
- Array.scala
Attributes
- Source
- Array.scala
Attributes
- Source
- Array.scala