spicy | C++ parser generator for dissecting protocols & files | Parser library

The list in the error message refers to a list of items rendered by Array.map(). In your case, each menu item is a ul element, so the error message's "child in the list" refers to the ul. Move the key to the ul:

This isn't linked to data.table.

sub relies on internal C code call:

Inside the loop, you continue assigning the result to the same index in the answers list, rather than assigning the result to another index for each input. Because you are not iterating anything, you don't even need the loop. Replace the entire while loop with the code below. Please upvote and accept answer if it solves/helps you with your problem.

You could use json module to parse content of script tags, which is accessible by .text field

Here is the example of parsing all script jsons and printing name:

You can use the replace function:

The issue is because getElementsByName() returns a NodeList, not an Element. Therefore the value property is undefined.

To fix the immediate issue you can instead select the element by its id, as this should be unique in the DOM and will only return a single Element:

The error you describe is a basic one, and doesn't actually have anything to do with threading per se. The itemClass.item class you've defined expects to be given four arguments. You're not doing that when you try to create an instance of the class in your GUI code. When you do t1 = itemClass.item(), you're not passing any arguments. Later in your code you try to call t1 with arguments, but that's not supported either (an instance of your class is not callable).

None of this makes much sense. I suspect the underlying problem is that you're trying to insert threading into a place it doesn't make any sense. You should want a thread to be running where you have ongoing stuff happening and you want it to continue to happen while you're doing something else in the main thread. The part of your code that you've shown doesn't seem like it matches up with that. You're just defining menu items here. There's nothing ongoing that needs a thread.

It is likely that you need to rethink the structure of this code and put the threading somewhere else. For instance, it might make sense for a menu item, once selected, to start up a thread that keeps running in the background. But the thread creation would then be triggered by GUI stuff (selecting from the menu), not created and started up front when the menu items are being defined.

Having trouble making out where you are starting from, but starting from your output of the list of integers and the dict at the end of your question, you could do this:

Yes, there is. You can model your domain with many-to-many relationships using JPA. If you are using annotation this cam be achieve using @ManyToMany There is an example here