/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 vote236 views1 answer
Ruby get current datetime utc
Ruby
0 vote213 views1 answer
If rails.env.development
Ruby
0 vote212 views1 answer
Flash in rails
Ruby
0 vote254 views1 answer
Rails debug
Ruby
1 vote232 views3 answers
Ruby create CSV
Ruby
0 vote284 views1 answer
Self referencing association in ruby on rails
Ruby
2 votes235 views2 answers
How to create migration with uniqueness inrails
Ruby
0 vote230 views1 answer
Validations rails integer suprior to 0
Ruby
0 vote229 views1 answer
Rails duplicate record
Ruby
0 vote268 views1 answer
Convert to ascii ruby
Ruby