vas | composable client/server data services using pull streams | REST library
kandi X-RAY | vas Summary
kandi X-RAY | vas Summary
:seedling: composable client/server data services using pull streams
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- Create a stream for a service
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Trending Discussions on vas
QUESTION
I want to send a post request with the request module. And my code snipped like that:
...ANSWER
Answered 2022-Jan-13 at 16:08Cannot read property '' of null
means that the property of the object doesn't exist. What you can do is log file and then check if the property 'name' exist.
Remember: console.log() is your best friend in nodejs (and in programming in general)
QUESTION
I am making a frequent questions section and I added an arrow which I wanted to flip when the question is clicked and the answer showed.
I notice if I want for the element to be find with the e.currentTarget.children when clicked it most be immediate after the class clicked and I am having a hard time doing in it.
Any help is more than welcome!
This is my code:
HTML:
...ANSWER
Answered 2022-Feb-25 at 00:52Not sure what $(e.currentTarget).(e.currentTarget)('.arrow')
was meant to be, but one way to target the relative arrow is $(this).find('.titulo-arrow .arrow')
. Also, to figure out if we're opening or closing I use a className and just test for it
QUESTION
I am making capitalized function. But when execute this code, the bus error occur. Is there anyone can debug this? I really need your help!! please help me . I am computer programming novice without c knowledge.
...ANSWER
Answered 2022-Feb-07 at 09:59This solution should work for you.
QUESTION
I'm trying to write a PCIe driver to DMA pages from the host memory to an FPGA. My host setup is Cavium ThunderX2 and my FPGAs are Xilinx Alveo U50.
A DMA from/to the host causes the ARM SMMU v3.4 to throw an event 0x10 Translation fault. I'm using dma_map_single(..) and dma_alloc_coherent(..) Linux APIs to map the virtual address of the page to a DMA-capable address.
Further inspecting the event records, Context Descriptor, and Stream Table Entries, I have the following information.
...ANSWER
Answered 2022-Jan-12 at 02:58I was able to fix the issue. There was a synchronization lapse between the IOMMU and the DMA mapping. There were no valid descriptors found for the mapped DMA addresses in the SMMU.
I used dma_alloc_coherent(SZ_2M) to get a buffer region and use IOMMU domain ops to map the IOVA to the SMMU.
QUESTION
I have a problem, when I click on the radiobutton of the day (for example, Monday), I get the section for that day (Monday), but when I click on the day (for example, Tuesday) the section for Tuesday appears Along with Monday's, what I need to do is that, when I click on Monday's radiobutton, they will look for Monday's section and that when I click on Tuesday's radiobutton, I will appear on Tuesday and remove Monday's, like this for each day of the week.
...ANSWER
Answered 2021-Dec-15 at 14:36Instead of 1 class for each day of the week, just have one class which starts off the element hidden and a single class which overrides this to visible.
Then its just a case of finding the currently shown and removing that class, then finding the right element and adding it (as you had, but without the day-specific class)
QUESTION
I have this program that as soon as it starts up, it asks you to enter the number of books that you want to register in the program and the number of authors that each book will have. The program will ask you to register a name for each author, surname, age and nationality. Once this is done, there is a button that shows all the books registered with their authors and the data of the books, and I have the problem that I am not able to show the data of the authors since only [object Object] appears.
Edit:
I have managed to print the element.autores
by console.log
, without the error obejct object appearing but I am not able to get it out through a document.write
or something similar, here I leave a screenshot of how it should appear:
And if I try to put elements.autores.nombre
to print only the name, it appears undefined both in the console.log
and in the document.write
Here my code:
javascript:
...ANSWER
Answered 2021-Nov-30 at 14:18You are trying to get element.autores
, which is an array. To get e.g. get the nombre
, you wold have to acces it with element.autores[0].nombre
.
So your code to output all books (with authors) would be something like this:
QUESTION
I have a product named with an acronym and the name of the product is repeated many times on the page.
In Spanish, typographic style rules suggest using acronyms in small-caps, but the font I have does not provide the small-caps option.
What is the best way to code a simulation of small-caps in this case?
...ANSWER
Answered 2021-Nov-26 at 15:43This is a good solution in any context given a font with enough font-weight options.
QUESTION
I'm using "jQuery Contact Form with Attachment using PHP" from PHPPOT website but I need your help with mentioned problems I have.
First, I would like to increase attachment limit which is now 2 MB. I asked my ISP to set new parameters in php.ini but they've said that my limit is already 32 MB. Unfortunately, when I try to send the file bigger than 2 MB I've got message "Could not access file:" and receive the mail without attachment.
Second thing, I would like to add additional filed "Telephone number" to my contact form and I've done everything I have conclude logically (just to remark that I'm PHP noob :( ) but I cannot make this info to be part of my e-mail.
And the last thing...how can I force the form to be reset after successful sending?
Thanks a lot!!!
Below are the PHP files and you can se my form here: https://test.arhviz.rs/Test.html
index.php
...ANSWER
Answered 2021-Nov-25 at 09:48I am pretty sure that in these two lines...
QUESTION
I'm working with a template and everything went smooth, until I tried to change main banner image with another image in style.css
file. However, if I set style directly to the banner class in index.php
it works.
Moreover, if I delete the whole banner-section in style.css it still works perfectly, as if I haven't deleted anything. I'm not sure anymore what I'm missing here, never had any problems linking CSS files.
Not working:
index.php
ANSWER
Answered 2021-Nov-16 at 18:42When you specify the file location of the background image, it is relative to the folder the CSS is executed in. The CSS file is located in /assets/css/
, so...
It's looking for /assets/css/assets/images/volvobanner.jpg
which likely does not exist. You would have caught this if you looked in the Network tab of the Developer Tools in your browser. ;)
Solution: correct the file location. You are already in /assets/css
as the file is being read, so you could just change your file's location to: ../images/volvobanner.jpg
in the background-image
attribute. The reference to the file's location should match the relative folder they're in.
Or, configure the absolute path: /assets/images/volvobanner.jpg
QUESTION
In a multiprocessor environment, there might be processes that might be running in parallel in a given instant. Since the virtual address space is divided into user space and kernel space, I am assuming as the processes are being scheduled they might be swapped in and out of the VAS.
But when two or more processes are running in parallel, do they have their own VASes? As in for each processor? Or do all the parallel processes share the same VAS?
VAS-> Virtual Address Space.
...ANSWER
Answered 2021-Oct-18 at 17:55Each process always has its own virtual address space, and that address space will be used by any processor that is executing that process. In particular, different processors may be using different address spaces at the same time.
More concretely, virtual addressing is implemented via a page table: a structure in memory that specifies how to translate a virtual address to a physical address. The kernel will maintain a separate page table for every process. Each CPU has its own page table register that points to the page table it should be using to translate addresses at this instant. When the scheduler chooses to run process X1 on CPU Y1, part of the context switch process will be to have CPU Y1 load its page table register with a pointer to the page table for process X1. Then CPU Y1 will effectively be using X1's virtual address space until it performs another context switch.
It makes no difference what other CPUs may be doing during this time. CPU Y2 might be using the X1 page tables as well (if it's executing another thread of process X1), or it might be using a completely different set of page tables for process X2. There could even be overlap between their page tables, if X1 and X2 are using shared memory or something like that.
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