Created
March 14, 2016 09:13
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Adding big numbers JavaScript (from codewars.com)
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| function add (a, b) { | |
| let res = '', c = 0 | |
| a = a.split('') | |
| b = b.split('') | |
| while (a.length || b.length || c) { | |
| c += ~~a.pop() + ~~b.pop() | |
| res = c % 10 + res | |
| c = c > 9 | |
| } | |
| return res | |
| } |
I think the double bitwise NOT operator is checking for undefined
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Why you are using the bitwise double NOT operator in line 6. Is this way to handle negative numbers, but then why are you not adding one to them?