/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

0 vote320 views1 answer
Rails server not updating
Ruby
0 vote382 views1 answer
Ruby get haft of array
Ruby
0 vote368 views1 answer
Rails undo generate model
Ruby
3 votes391 views2 answers
Ruby comparison operators
Ruby
3 votes400 views1 answer
Exit program ruby
Ruby
14 votes502 views2 answers
Ruby each do method
Ruby
0 vote342 views1 answer
Rails delete link
Ruby
3 votes402 views2 answers
Default value rails migration
Ruby
0 vote314 views0 answer
Ruby
1 vote338 views1 answer
Is identation madatory in ruby
Ruby