I know where you're coming from, but I don't actually think it's very clear what type of questions will be asked for most technical interviews, and that is what

I know where you're coming from, but I don't actually think it's very clear what type of questions will be asked for most technical interviews, and that is what makes it so frustrating and soul-crushing. There is always something I do not know, so the kinds of questions I face during interviews is seemingly endless. If I'm applying for a Front-End Developer position, the interviews can ask CS fundamental questions, or things I maybe learned by reading Cracking The Coding Interview, or doing HackerRank problems; or they might ask specific questions about any frameworks or libraries listed on the job posting, or they might ask more software architecture / system design questions, or they might ask about the Software Development Life Cycle, what is Waterfall, describe AGILE, how do you write testable code, the deployment process, security vulnerabilities, etc. Maybe all of that doesn't sound so bad to you, but for a young, mostly inexperienced developer who is trying to get a better job, it is daunting.