Note: this rough draft has turned into https://github.com/maxogden/art-of-node#art-of-node
go to https://github.com/maxogden/art-of-node#art-of-node to view the newer versions of this document
go to https://github.com/maxogden/art-of-node#art-of-node to view the newer versions of this document
function map(x, in_min, in_max, out_min, out_max) { | |
return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min; | |
} |
This guide assumes that you recently run brew upgrade postgresql
and discovered to your dismay that you accidentally bumped from one major version to another: say 9.3.x to 9.4.x. Yes, that is a major version bump in PG land.
First let's check something.
brew info postgresql
The top of what gets printed as a result is the most important: