That's the reason why CS classes and degrees exist. Or at least it should be.
No company will pay you for several years just to learn complexity theory, write sorting algorithms, study schedulers, rewrite UNIX tools, understand hardware architectures, etc... They want you to be productive right away, and the shortest path is just to follow recipes with the latest framework.
That's the point of education, universities teach you what you won't learn on the job. So that when you finally get to work, you will have a better understanding of what you are doing.
No company will pay you for several years just to learn complexity theory, write sorting algorithms, study schedulers, rewrite UNIX tools, understand hardware architectures, etc... They want you to be productive right away, and the shortest path is just to follow recipes with the latest framework.
That's the point of education, universities teach you what you won't learn on the job. So that when you finally get to work, you will have a better understanding of what you are doing.