Ruby | Array drop() operation

Ruby | Array map!() operation

Last Updated : 06 Dec, 2019

Array#map!() : map!() is a Array class method which returns a new array containing the values returned by the block.

Syntax: Array.map!() Parameter: Array Return: a new array containing the values returned by the block.

Example #1 :

Ruby

# Ruby code for map!() 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]

# map!
puts "map! method : #{a.map! {|num| num > 10 }}\n\n"

# map!
puts "map! method : #{b.map! {|x| x.odd? }}\n\n"

Output :

map! method : [true, true, true, false, false, false]

map! method : [true, false, true, true, false, true]

Example #2 :

Ruby

# Ruby code for map!() 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]

# map!
puts "map! method : #{c.map! {|num| num > 10 }}\n\n"

# map!
puts "map! method : #{a.map! {|num| num > 10 }}\n\n"

Output :

map! method : [true, true, false, false, true, false]

map! method : [true, true, true, false, false, false]

Ruby | Array drop() operation

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