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(''));
}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(''));
}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.Copyright © 2021 Codeinu
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