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SUBMIT YOUR IDEAI don't realise how much RegEx I use until I look back over a challenge like this... A fun one for sure!
RegEx is so cool! Study with others' solution and too much gains!
This was challenging for me as someone who doesn't have to use regex.
I also find it odd that there is not a more automated way to handle strings containing standard numeric formatting (rather than using regex or character replacement to strip-out commas).
Also, I couldn't bring myself to convert away from ISO8601 date format.