Array (original) (raw)
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.
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Creates an array of Boolean objects
Creates an array of Boolean objects
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Creates an array of Byte objects
Creates an array of Byte objects
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Creates an array of Short objects
Creates an array of Short objects
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Creates an array of Char objects
Creates an array of Char objects
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Creates an array of Int objects
Creates an array of Int objects
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Creates an array of Long objects
Creates an array of Long objects
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Creates an array of Float objects
Creates an array of Float objects
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Creates an array of Double objects
Creates an array of Double objects
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Creates an array of Unit objects
Creates an array of Unit objects
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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
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Copy one array to another.
Copy one array to another. Equivalent to Java's System.arraycopy(src, srcPos, dest, destPos, length), except that this also works for polymorphic and boxed arrays.
Note that the passed-in dest 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
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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's java.util.Arrays.copyOf(original, newLength, newType), except that this works for all combinations of primitive and object arrays in a single method.
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See also
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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's java.util.Arrays.copyOf(original, newLength), except that this works for primitive and object arrays in a single method.
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See also
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Returns an array of length 0
Returns an array of length 0
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Compare two arrays per element.
Compare two arrays per element.
A more efficient version of xs.sameElements(ys).
Note that arrays are invariant in Scala, but it may be sound to cast an array of arbitrary reference type to Array[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
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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 that elem 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
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Returns
an Array of size n, where each element contains the result of computing elem.
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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
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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
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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
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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
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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
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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 len values in the sequence start, f(start), f(f(start)), ...
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Creates array with given dimensions
Creates array with given dimensions
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Creates a 2-dimensional array
Creates a 2-dimensional array
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Creates a 3-dimensional array
Creates a 3-dimensional array
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Creates a 4-dimensional array
Creates a 4-dimensional array
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Creates a 5-dimensional array
Creates a 5-dimensional array
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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 value not returned)
start
the start value of the array
Attributes
Returns
the array with values in range start, start + 1, ..., end - 1 up to, but excluding, end.
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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 value not 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 excluding end
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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
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Returns
An Array consisting of elements f(0),f(1), ..., f(n - 1)
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Returns a two-dimensional array containing values of a given function over ranges of integer values starting from 0.
Returns a two-dimensional array containing values of a given function over ranges of integer values starting from 0.
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
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Returns a three-dimensional array containing values of a given function over ranges of integer values starting from 0.
Returns a three-dimensional array containing values of a given function over ranges of integer values starting from 0.
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
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Returns a four-dimensional array containing values of a given function over ranges of integer values starting from 0.
Returns a four-dimensional array containing values of a given function over ranges of integer values starting from 0.
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
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Returns a five-dimensional array containing values of a given function over ranges of integer values starting from 0.
Returns a five-dimensional array containing values of a given function over ranges of integer values starting from 0.
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
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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
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Returns
sequence wrapped in a scala.Some, if x is an Array, otherwise None
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Provides an implicit conversion from the Array object to a collection Factory
Provides an implicit conversion from the Array object to a collection Factory
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