I'll give .NET Core a try in 2020 based on what I read about it, the flexibility of C# besides it's backed by Microsoft, all of that with the fact that's it an open source make it my second go with Go Lang which will be my replacement to Nodejs.
I don't think that I will pickup any new tech for Front-end I'm doing well with Vue, Vuex and Nuxt.
I'll give .NET Core a try in 2020 based on what I read about it, the flexibility of C# besides it's backed by Microsoft, all of that with the fact that's it an open source make it my second go with Go Lang which will be my replacement to Nodejs.
I don't think that I will pickup any new tech for Front-end I'm doing well with Vue, Vuex and Nuxt.
If you do pickup .net, they have now blazor; which will allow you to do front end also using c#
Yes, as I mentioned, in 2020 I want to study blazor server side. The client side , after it is production ready and mature.