Ruby | Array class last() function Last Updated : 07 Jan, 2020 Comments Improve Suggest changes Like Article Like Report last() is a Array class method which returns the last element of the array or the last 'n' elements from the array. The first form returns nil, If the array is empty . Syntax: Array.last() Parameter: Array n - no. of elements Return: last element of the array or the last 'n' elements from the array Example #1 : Ruby # Ruby code for last() method # declaring array a = [18, 22, 33, nil, 5, 6] # declaring array b = [1, 4, 1, 1, 88, 9] # declaring array c = [18, 22, nil, nil, 50, 6] # last puts "last : #{a.last(5)}\n\n" # last puts "last : #{b.last(4)}\n\n" # last puts "last : #{c.last()}\n\n" Output : last : [22, 33, nil, 5, 6] last : [1, 1, 88, 9] last : 6 Example #2: Ruby # Ruby code for last() method # declaring array a = ["abc", "nil", "dog"] # declaring array b = ["cow", nil, "dog"] # declaring array c = ["cat", nil, nil] # last puts "last : #{a.last(5)}\n\n" # last puts "last : #{b.last(4)}\n\n" # last puts "last : #{c.last()}\n\n" Output : last : ["abc", "nil", "dog"] last : ["cow", nil, "dog"] last : Comment More infoAdvertise with us Next Article Ruby | Array class last() function M mayank5326 Follow Improve Article Tags : Ruby Ruby-Methods Ruby Array-class Similar Reads Ruby | Array class hash() function hash() is an Array class method which returns the hash code of the array elements Syntax: Array.hash() Parameter: Array Return: hash code of the array elements Example #1 : Ruby # Ruby code for hash() method # declaring array a = [18, 22, 33, nil, 5, 6] # declaring array b = [1, 4, 1, 1, 88, 9] # de 1 min read Ruby | Array class insert() function insert() is a Array class method which returns the array by inserting a given element at the specified index value. Syntax: Array.insert() Parameter: Array index element Return: insert elements the specific index value Example #1 : Ruby # Ruby code for insert() method # declaring array a = [18, 22, 2 min read Ruby | Array class inspect() function Inspect() is an Array class method which returns the all array elements. Syntax: Array.inspect() Parameter: Array Return: all array elements Example #1 : Ruby # Ruby code for inspect() method # declaring array a = [18, 22, 33, nil, 5, 6] # declaring array b = [1, 4, 1, 1, 88, 9] # declaring array c 1 min read Ruby | Array class index() function index() is an Array class method which returns the index of the first object in the array. Syntax: Array.index() Parameter: Array obj - object to search for Return: Index value of the first array Example #1 : Ruby # Ruby code for index() method # declaring array a = [18, 22, 33, nil, 5, 6] # declari 1 min read Ruby | Array assoc() function The assoc() function in Ruby is used to search through an array of arrays whose first element is compared with the index of the function and return the contained array if match found otherwise return either nil or vacant. Syntax: Array.assoc(Object) Here Array is the array of arrays. Parameters: Obj 2 min read Like