hacks | A collection of hacks and one-off scripts

Here's the layout I'm trying to achieve:

I'm using Vaadin Deisgner 14.6.1 to create some super simple tabs. However, when I try to do some simple operations in the java class (eg selecting a tab), it throws an error which indicates that the "Tabs" object does not have the proper children "tab" components. Here's a simple test case below. (I discovered the issue when I was trying to add a addSelectedChangeListener() to the tabs class and discovered that it would never fire, presumably since the "tabs" class never properly had any children.) I tried a bunch of hacks, but nothing worked. (I have in the past gotten tabs to work if I stuck purely to a programmatic approach, but I really really really like using Designer, since it saves me tonnes of times and keeps the code quite modular and clean....when it works....)

i'm trying to test XDP program but the test environment was provided by the client consists of one server and qemu guest running on it and act as a traffic generator ( using scapy or DPDK ). and to have this test run successfully,the packets from the guest should arrive/be injected to the NIC driver ( XDP working in native mode ) of the host. is there's any configs/hacks that can make the traffic goes from the guest to the host driver?

edit : some points to be cleared as @vipin suggested,

• on the host, the NIC is connected to virbr0 on kernel.
• the XDP is running on the physical NIC.
• i'm using bpf_redirect_map for redirecting as we still in simple stage.

anyway, i got a work around is just to add a physical router to the lab setup and it's enough for this stage of test.

I am preparing a presentation using R Markdown and revealjs and I'd like to customize the title page. In particular, I wanted to:

1. Reduce the font size of the author name.
2. Remove bold from author name.
3. Increase space between the title and author name.

so far, I was only able to come up with some Html hacks in the heading, which did not work satisfactorily.

How i can do event "Click button on screen (in another application, like minecraft)"
I want make a python thing what clicking buttons on minecraft like:
'A', 'B', 'C', 'CTRL', 'SHIFT', '1', '2', '3', '\', 'ENTER' etc.
It will click only 1 time
To find people with hacks, i don't love people who cheating >:d\

I'm getting the following error with GCC >=9 and std>=11 merely by adding the header (MacOSX on MacBook Pro 2020 and armadillo installed with Homebrew and the code is compiled with standard CMake configuration) #include to my project.

Undefined symbols for architecture x86_64: "___emutls_v._ZN4arma19mt19937_64_instanceE", referenced from: __GLOBAL__sub_I_Test_HPP.cpp in Test_HPP.cpp.o ld: symbol(s) not found for architecture x86_64 collect2: error: ld returned 1 exit status make[2]: *** [Test_HPP] Error 1 make[1]: *** [CMakeFiles/Test_HPP.dir/all] Error 2

I've tried various hacks including optimization flags e.g. O2, O3 etc. but finally adding the preprocessor header #define ARMA_DONT_USE_WRAPPER apparently resolved the issue for now but I need an explanation to feel settled. If the above pre-processor is absolutely necessary to compile the code, should the armadillo library maintainers absorb the macro within the library itself? This kind of issues may take a lot of time to resolve as it is not originated in any programming logic.

I have a very weird problem when using a dump from informix database via the dbaccess executable.

Here is how the problem behaves:

I have a component called Alert. It displays an icon, title and description in a consistent way. To show the Alert, I have an optional binding (if the binding is not passed in, it defaults to true which always shows the alert).

I would like for the alert to always animate in/out. There is a close button inside the alert, and when I wrap it with

So this is a little complicated. I'm doing a university assignment using Firebase Firestore. Basically I have a page that displays information that is filled in on a separate page each entry into my database has a latitude and longitude value and I want to have a map on each entry that is displayed, so inside my JavaScript folder where I am writing HTML for how I want the info displayed I have the map div (I'm gonna use the doc.id for a unique identifier but for the time being I'm just trying to get the map working).

I'm getting this error