StudentRecord | Angular 8 MySQL CI/CD Complete Project | Frontend Framework library

Your call to node.RemoveAll(); is doing exactly what it is supposed to do, which is to remove all the node's children and all of its attributes. It does not remove the node. You have to do that from the parent node. Something like this.

VS does not like the member string Course in the struct Course, because "Course" is the implicit name of the constructor. Rename either the member or the struct name.

The conditional 88 in your example is for the StudentRecord, so it sets/queries that. I think that it may be more appropriate to use VALUE ALL HIGH-VALUES - as it stands it will set the first byte to HIGH-VALUE and then pad the record (with spaces).

VALUE 0/1 would not be possible for that as the record - because it is a group - is alphanumeric, and should not be assigned a numeric value.

... the question "is xyz preferred" is often more a question of style and only rarely "best practice". The commonly good thing is to ensure a consistent use/style so that others reading the code can understand it better.

In this specific case it could be used to "store" the information "all students were processed" which then can be queried later via IF EndOfStudentFile and if for some reason there is another START >= StudentID (I assume that is an ORGANIZATION INDEXED file here) on the file it likely will not found "another" record (still possible here, a student with an id containing ALL HIGH-VALUE would be found).

Give different file names, you are giving same filename to both kind of records and you can't have more than one file with same name in zip. If your goal is to have multiple excel sheets then this question is wrong. In that case you need to create excel like that.

You override res in your callbacks. Name the second parameter in the callbacks result and everything will work fine.

The two occurrences of studentrecord refer to 2 different things

In the list comprehension, studentrecord is used to hold each element of the range range(num). It's basically an index, but it's never used anyways.

Edit: I don't think the list comprehension should call it studentrecord because the elements of that range are indices and not lists representing a student's name and grade. It's a little confusing, and the variable should probably be renamed to something like i or _.

That list comprehension is like doing this:

When you write/read in a file you use a stream (FILE*) that stores where in the file you are (position).

When you finished writting that was the last stream position.

You need to go back to the begin of the file if you want to read it entirely.

You can use fseek for this.

int fseek(FILE *stream, long int offset, int whence);

1 SEEK_SET : Beginning of file

2 SEEK_CUR : Current position of the file pointer

3 SEEK_END : End of file

This is not about templates ("generic class").

Just like int f(); is a function declaration, StudentRecord srInt();s is a function declaration. Yes, even when you write it in a function.

Remove the () and you get an object declaration instead.

That's it!

Some people call this the "Most vexing parse", though it is not actually an example of that. It does involve some of the same grammar/language rules to a degree.

When you wrote StudentRecord srInt(-1);, that is a valid object declaration, because there is no way it can be a function declaration (-1 is not an argument declaration).

If -1 were swapped for a more complex expression, it's possible to get surprised by the fact that it gets interpreted as a valid argument declaration. Like int f(int());. That's the most vexing parse.

There's no magic or strangeness here; you just have to use the right symbols for what you want.

I just found how to do it. These are the steps I followed to solve my problem:

1. As shown in the image, I don't have the School module on my menu.

1. So, I went to Settings and Activated the Developer Mode (First one)

1. Then after the page was reloaded, my main bar (not sure about the actual name of it) turned into this:

1. I noticed that a bug appeared in my main bar

1. Then for the sake of curiosity, I clicked on the bug and selected the option Become superuser

1. I noticed that my main bar changed like this:

1. Finally, after opening the Menu my module was there!! (hooray!)

And, that is the end for the story (for now) I still need to figure out how to deploy this changes into production, but that my friends is another story!

Thanks!