> Why does the author insist that to teach each to a beginner he has to teach all of those concepts?
Because you aren't teaching, and it merely becomes rote memorization. After all, what does || really mean? What does it do there? Without explaining it, it's magic. And instead of learning, the student must disassociate || with what it really and merely associate it with each.
On top of this, you'll have those wondering what || is, and bothered that they are using something without understanding it's importance.
> Did K&R explain everything about the preprocessor with their "Hello, world!"
No, but they explained what that line (#include <stdio.h>) did. They didn't just gloss over it. They covered every line, and every element, including the different braces.
So, either you teach what || is, or you ignore it, and that will only make things more difficult later on.
Because you aren't teaching, and it merely becomes rote memorization. After all, what does || really mean? What does it do there? Without explaining it, it's magic. And instead of learning, the student must disassociate || with what it really and merely associate it with each.
On top of this, you'll have those wondering what || is, and bothered that they are using something without understanding it's importance.
> Did K&R explain everything about the preprocessor with their "Hello, world!"
No, but they explained what that line (#include <stdio.h>) did. They didn't just gloss over it. They covered every line, and every element, including the different braces.
So, either you teach what || is, or you ignore it, and that will only make things more difficult later on.