Originally published at vatnode. dev . The version on vatnode.
Source: [Dev.to](https://dev.to/iurii_rogulia/validate-spanish-vat-numbers-nifcif-in-nodejs-a9j)
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Hello. I've recently started soldering, specifically wanting to repair the joysticks on several Playstation 4 controllers I have, but I also want to get good at electronic repair in general. Right now I've busted a board, and managed to desolder and resolder a stick but the controller doesn't t...
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