square every digit of a number ruby
function squareDigits(num){
return Number(('' + num).split('').map(function (val) { return val * val;}).join(''));
}
0
3
number = 12345
number.to_s.chars.map { |num| num.to_i ** 2 }.join.to_i
# convert number to string (.to_s), convert string to array (.chars)
# .map each array element to the result of a block call.
# .join array into string & convert back to integer.
Thank you!
3
0
Are there any code examples left?
New code examples in category Ruby
-
Ruby 2022-03-27 13:25:03 ruby assign value to hash
-
Ruby 2022-03-25 04:05:10 test if array empty ruby
-
Ruby 2022-03-24 19:45:17 rails update without validation
-
Ruby 2022-03-23 05:15:08 ruby hello world
-
Ruby 2022-03-23 02:40:01 rails keep all params except for some
-
Ruby 2022-03-20 06:15:08 rails hidden field default value
-
Ruby 2022-03-19 19:55:31 print things ruby
-
Ruby 2022-03-18 22:15:07 rails command line
-
Ruby 2022-03-18 08:10:03 ruby get the number of same element in array
-
Ruby 2022-03-17 02:40:17 drop rails all db