It is not JavaScript that is created in 10 days, apparently Git is also made so quickly.
And both Git and JavaScript take way much more than 10 days to learn properly :)
It is strange how code market works, "free" and "available" often "wins"
Linus Torvalds built Git in 10 days - and never imagined it would last 20 years
Git is celebrating its 20th anniversary. Here's why Torvalds never intended for it to stick around.