/Ruby/Square every digit of a number ruby

Square every digit of a number ruby

If we run 9119 through the function, 811181 will come out, because 92 is 81 and 12 is 1.

function squareDigits(num){
    return Number(('' + num).split('').map(function (val) { return val * val;}).join(''));
}

Source: stackoverflow.com

Square every digit of a number ruby

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.

Similar codes

3 votes225 views1 answer
Ruby string to int
Ruby
0 vote177 views1 answer
Ruby does object exist in array
Ruby
3 votes192 views1 answer
Ruby string contains
Ruby
0 vote177 views1 answer
How do i fix FATAL: password authentication failed for user "root"
Ruby
0 vote188 views1 answer
Write csv with header ruby
Ruby
1 vote171 views1 answer
Find records created in a particular month rails
Ruby
0 vote155 views1 answer
Rails many to many relationship same model
Ruby
0 vote198 views1 answer
Blocked host: c25f383bd08f.ngrok.io
Ruby
3 votes129 views2 answers
Sort hash by value ruby
Ruby
0 vote177 views1 answer
How to push different branch to heroku
Ruby