I think you are grossly overestimating the audience of this author. They are a “self published” author whose books are free and not read by many people.
If anything, she will see a massive spike in readers just because of curious people checking her out.

You must forgive them young Padawan, they still have fucks to give, or have only recently run out. They are still concerned with the “knowing” of things. It is only once you reach a severe and immeasurable deficit of fucks that you can completely let go of your personal pride and ego enough to admit that this shit is fucking ridiculous and you might as well just let Google/AI remember it for you.

Dude, there are at least 4 different “for” loop syntaxes in Js/Ts alone:

for (let num = 1; num <= 5; num++) {}.

for (const num of numbers) {}.

for (const num in numbers) {}.

this.numbers].forEach(num => {});

Also don’t forget ngFor and @for in html, and then the @for in sass/scss.

That’s 7 different for loops and I haven’t included the non-for loops, or even left Angular.

Once we include some scripting like I did just this week:

bash: for i in {1…5}: do … done

dos: for /L %%i in (1,1,5) do ()

Then you can just stfu if I feel the need to remind myself of the exact syntax for one of the 3 or 4 different for loop options in c#.

As a senior programmer I can’t write a for loop without the internet.
I can’t remember the last time I saw a job listing that didn’t expect me to be an expert in at least 5 languages. The best part is that halfway through the interview you learn that they are no longer using half the languages listed, and are “transitioning” towards 2 others that aren’t even listed. You want me to whip out examples written in Fortran, C++, Rust, JS, and some random word you claim is a language in 2 hrs without the internet? Bitch, I don’t even think I could get prewritten “Hello World” examples compiled in 5 different languages in 2 hrs, much less on machine that I have never seen before.