Ruby | Array select!() function Last Updated : 06 Dec, 2019 Comments Improve Suggest changes Like Article Like Report Array#select!() : select!() is a Array class method which returns the given block passing in successive elements from self, deleting elements for which the block returns a false value. Syntax: Array.select!() Parameter: Array Return: the given block passing in successive elements from self, deleting elements for which the block returns a false value. Example #1 : Ruby # Ruby code for select!() method # declaring array a = [18, 22, 33, 3, 5, 6] # declaring array b = [1, 4, 1, 1, 88, 9] # declaring array c = [18, 22, 3, 3, 50, 6] # select! puts "select! method : #{a.select! {|num| num > 10 }}\n\n" # select! puts "select! method : #{b.select! {|x| x.odd? }}\n\n" Output : select! method : [18, 22, 33] select! method : [1, 1, 1, 9] Example #2 : Ruby # Ruby code for select!() method # declaring array a = [18, 22, 33, 3, 5, 6] # declaring array b = [1, 4, 1, 1, 88, 9] # declaring array c = [18, 22, 3, 3, 53, 6] # select! puts "select! method : #{c.select! {|num| num > 10 }}\n\n" # select! puts "select! method : #{c.select! {|num| num.even? }}\n\n" Output : select! method : [18, 22, 53] select! method : [18, 22] Comment More infoAdvertise with us Next Article Ruby | Array select!() function M mayank5326 Follow Improve Article Tags : Ruby Ruby-Methods Ruby Array-class Similar Reads Ruby | Array select() function Array#select() : select() is a Array class method which returns a new array containing all elements of array for which the given block returns a true value. Syntax: Array.select() Parameter: Array Return: A new array containing all elements of array for which the given block returns a true value. Ex 2 min read Ruby | Array slice!() function Array#slice!() : slice!() is a Array class method which seletes the element(s) given by an index or by a range. Syntax: Array.slice!() Parameter: Array Return: Deletes the elements given by an index or by a range. Example #1 : Ruby # Ruby code for slice!() method # declaring array a = [18, 22, 33, n 2 min read Ruby | Array slice() function Array#slice() : slice() is a Array class method which returns a subarray specified by range of indices. Syntax: Array.slice() Parameter: Array Return: a subarray specified by range of indices. Example #1 : Ruby # Ruby code for slice() method # declaring array a = [18, 22, 33, nil, 5, 6] # declaring 1 min read Ruby | Array sample() function Array#sample() : sample() is a Array class method which returns a random element or n random elements from the array. Syntax: Array.sample() Parameter: Array Return: a random element or n random elements from the array. Example #1 : Ruby # Ruby code for sample() method # declaring array a = [18, 22, 1 min read Ruby | Array sort!() function Array#sort!() : sort!() is a Array class method which returns sorted self array in place. Syntax: Array.sort!() Parameter: Array Return: sorted self array in place. Example #1 : Ruby # Ruby code for sort!() method # declaring array a = ["abc", "nil", "dog"] # declaring 1 min read Like