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Nice tricks with Switch operator in JavaScript

17.09.201924.01.2021 ~ Roman
Evaluating expressions inside Switch statement …

How to calculate ISIN checksum digit

11.01.201920.05.2024 ~ Roman

ISIN consists of CUSIP with a prepended 2-letter country code and an appended checksum digit. In my opinion, the description of the checksum algorithm from wikipedia in the time of this writing is slightly vague. …

How to calculate CUSIP checksum digit

10.01.201920.05.2024 ~ Roman

Here is my JS implementation of the algorithm which can be found on wikipedia …