Which is the programming language to use for a web-based inventory?
Why are you learning this? Is it pure intellectual curiosity or is it to be able to get a job in the future? If its curiosity build it in a couple of languages. If its to improve your job prospects look at what languages the jobs near you are looking for and do it in that. If this is an attempt to get job ready here is a bit of advice that I wish I had gotten when I was starting out. Focus on one language and get good at it. Jumping from language to language is going to slow your progress. For myself I can say with certainty that jumping around and trying the latest hotness was a distraction that significantly slowed my progress. As a new developer learning how to think through the problem in front of you is more important than the syntax of the language you choose.