Return type  Name and parameters 

boolean

asBoolean()
Coerces a long array to a boolean value. 
BigDecimal

average()
Calculates the average of the longs in the array. 
boolean

contains(Object value)
Checks whether the array contains the given value. 
Number

count(Object value)
Counts the number of occurrences of the given value inside this array. 
void

downto(Number to, Closure closure)
Iterates from this number down to the given number, inclusive, decrementing by one each time. 
Collection

flatten()
Flatten an array. 
List

getAt(IntRange range)
Support the subscript operator with an IntRange for a long array 
List

getAt(ObjectRange range)
Support the subscript operator with an ObjectRange for a long array 
List

getAt(Range range)
Support the subscript operator with a range for a long array 
List

getAt(Collection indices)
Support the subscript operator with a collection for a long array 
String

join(String separator)
Concatenates the string representation of each items in this array, with the given String as a separator between each item. 
int

size()
Allows arrays to behave similar to collections. 
Stream

stream()
Returns a sequential Stream with the specified array as its source. 
long

sum()
Sums the items in an array. 
long

sum(long initialValue)
Sums the items in an array, adding the result to some initial value. 
long[]

swap(int i, int j)
Swaps two elements at the specified positions. 
List

toList()
Converts this array to a List of the same size, with each element added to the list. 
Set

toSet()
Converts this array to a Set, with each unique element added to the set. 
String

toString()
Returns the string representation of the given array. 
void

upto(Number to, Closure closure)
Iterates from this number up to the given number, inclusive, incrementing by one each time. 
Coerces a long array to a boolean value. A long array is false if the array is of length 0, and true otherwise.
Calculates the average of the longs in the array.
assert 5.0G == ([2,4,6,8] as long[]).average()
Checks whether the array contains the given value.
value
 the value being searched forCounts the number of occurrences of the given value inside this array.
Comparison is done using Groovy's == operator (using
compareTo(value) == 0
or equals(value)
).
value
 the value being searched forIterates from this number down to the given number, inclusive, decrementing by one each time.
to
 the end numberclosure
 the code to execute for each numberFlatten an array. This array and any nested arrays or collections have their contents (recursively) added to the new collection.
Support the subscript operator with an IntRange for a long array
range
 an IntRange indicating the indices for the items to retrieveSupport the subscript operator with an ObjectRange for a long array
range
 an ObjectRange indicating the indices for the items to retrieveSupport the subscript operator with a range for a long array
range
 a range indicating the indices for the items to retrieveSupport the subscript operator with a collection for a long array
indices
 a collection of indices for the items to retrieveConcatenates the string representation of each items in this array, with the given String as a separator between each item.
separator
 a String separatorAllows arrays to behave similar to collections.
Returns a sequential Stream with the specified array as its source.
Stream
for the arraySums the items in an array.
assert (1+2+3+4 as long) == ([1,2,3,4] as long[]).sum()
Sums the items in an array, adding the result to some initial value.
assert (5+1+2+3+4 as long) == ([1,2,3,4] as long[]).sum(5)
initialValue
 the items in the array will be summed to this initial valueSwaps two elements at the specified positions.
Example:
assert ([1, 3, 2, 4] as long[]) == ([1, 2, 3, 4] as long[]).swap(1, 2)
i
 a positionj
 a positionConverts this array to a List of the same size, with each element added to the list.
Converts this array to a Set, with each unique element added to the set.
Returns the string representation of the given array.