amaze | Web experience | Audio Utils library
kandi X-RAY | amaze Summary
kandi X-RAY | amaze Summary
Web experience, based on procedural visual, motion and audio effects
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QUESTION
In a recent related question I found that the following code
...ANSWER
Answered 2021-Jun-13 at 01:53See my (late) answer on the other question. The source-code analysis is required by specification.
It's not a case of code reordering in the manner you suggest; that would change behavior, which is forbidden.
Think of the general case: if use of computation was allowed before that computation had been done, then nothing is predictable.
However, in your example here, a sufficiently-smart compiler is allowed to optimize the generated code to (effectively) System.out.println(-1)
. Neither variable is actually necessary.
If such a thing occurred, it would not affect the required checking for definite assignment. Logically, simplification happens after validating the source code.
You'd have to examine the generated byte-code to see what actually happened. Further, in Java the optimization could be done 'later' by just-in-time compilation to native code.
QUESTION
I am learning CSS grid. While practicing I got an issue. justify-content: center
is not centering section-3-nav
div.
Here is my code:
...ANSWER
Answered 2021-May-13 at 17:44I am presuming you want to center the div to the page itself.
Try adding:
QUESTION
I would like to use the redirection operator to bring the stream from ffmpeg to cv2 so that I can recognize or mark the faces on the stream and redirect this stream again so that it runs under another stream.
One withoutfacedetect and One withfacedetect.
...ANSWER
Answered 2021-Apr-29 at 16:01I'm still not 100% certain what you are really trying to do, and have more thoughts than I can express in a comment. I have not tried all of what I think you are trying to do, and I may be over-thinking it, but if I put down my thought-train, maybe others will add in some helpful thoughts/corrections...
Ok, the video stream comes from the camera into the Raspberry Pi initially as RGB or YUV. It seems silly to use ffmpeg
to encode that to h264, to pass it to OpenCV on its stdin
when AFAIK, OpenCV cannot easily decode it back into BGR or anything it naturally likes to do face detection with.
So, I think I would alter the parameters to raspivid
so that it generates RGB data-frames, and remove all the h264 bitrate stuff i.e.
QUESTION
I am trying to define a Typescript template literal for a string containing comma-separated values. Can I make this definition truly recursive and general?
See this typescript playground to experiment with the case.
Each comma separated value represents a sort order like height asc
. The string should define an order (including primary, secondary, tertiary and so on) which may contain indefinitely many sort levels according to a union of valid field names and two possible orderings "asc"
and "desc"
, separated by commas as per the examples in the sample code.
The implementation below handles up to 4 sort orders, but case 5 reveals that it's not really recursive. The arity of the current expansion (2x2) just includes up to 4 possible values so happened by luck to handle the initial cases I tried.
...ANSWER
Answered 2021-Apr-20 at 18:57As you saw, the kind of template literal types you are creating quickly blow out the compiler's ability to represent unions. If you read the pull request that implements template literal types, you'll see that union types can only have up to 100,000 elements. So you could only possibly make Sort
accept up to 4 comma-separated values (which would need approx 11,110 members). And you certainly couldn't have it accept an arbitrary number, since that would mean Sort
would need to be an infinite union, and infinity is somewhat larger than 100,000. So we have to give up on the impossible task of representing Sort
as a specific union type.
Generally, my approach in cases like this is to switch from specific types to generic types which act as recursive constraints. So instead of Sort
, we have ValidSort
. If T
is a valid sort string type, then ValidSort
will be equivalent to T
. Otherwise, ValidSort
will be some reasonable candidate (or union of these) from Sort
which is "close" to T
.
This means that anywhere you intended to write Sort
will now need to write ValidSort
and add some generic type parameters to an appropriate scope. Additionally, unless you want to force someone to write const s: ValidSort<"height asc"> = "height asc";
, you'll want a helper function called, something like asSort()
which checks its input and infers the type. Meaning you get const s = asSort("height asc");
.
It might not be perfect, but it's probably the best that we can do.
Let's see the definition:
QUESTION
Sorry for being stupid but recently I stamped upon Hyperthreading and I was amazed how epic and awesome it is but I was wondering what problems it can fix.
...ANSWER
Answered 2021-Apr-05 at 17:08So hyperthreading refers to having more virtual CPU to one real CPU. Because we only have one real CPU we can only execute one instruction at a time (so no parallelism). So, what really happens is that the CPU pretends it has more cores and it uses his logic to speed up execution. The virtual CPUs can share physical execution resources. Hyperthreading can speedup the execution of a program but it is not as good as having more real CPUs.
Check out these answers for more detailed info: Does a hyperthreading CPU implement parallelism or just concurrency?
QUESTION
In Odoo 10, when user "A" creates a new sales order and assigns it to a different salesperson (user "B"), no matter what configuration you have applied to email templates/subtypes/send notifications, an email is automatically sent to the customer and the salesperson (I am still amazed on which business logic was follow to send internal notification emails to customers by default).
The email is the well known one with this format:
...ANSWER
Answered 2021-Apr-04 at 21:37Overwrite _message_auto_subscribe_notify
method for sale.order
class and add to context mail_auto_subscribe_no_notify.
QUESTION
I have a simple HTML file that contains some input fields and other tags. My goal is to get all the input
tags and append a new attribute value
to each of them. It is to be noted that the value of this new attribute will be decided/populated from an array of strings.
I'm using the BeautifulSoup
package of Python to parse this HTML file, and then append this new attribute to each of the input
tags.
This my HTML file which I'm parsing:
test.html
...ANSWER
Answered 2021-Mar-29 at 18:55You can simply add it the same as you would for key/value in a dictionary:
test_html:
QUESTION
Before I start, I just want to thank every contributor ahead of time. I've only posted one question before, and I was amazed at how quickly I got responses and how much I learned after studying the solution. I'm hoping I will have enough reputation points soon to start upvoting good solutions I find here.
Anyways, what I'm trying to do is return one number, and that number is the maximum number of names that appear in a single cell of a worksheet column. Each cell in that column can have any number of names in it. Each name is delimited by a pipe "|", so I count the pipes and then add one to get the number of names in each cell. For example: Cell value is "Bob | Jon | Larry" = 2pipes +1 = 3 names.
My code below works, but I need to do this on tens of thousands of records. I don't think my solution is a good or efficient way to do it (tell me if I'm wrong). So my questions are:
Is there a better way to accomplish this, such as without looping through every cell in the range?
If there isn't a totally different approach to this, how can I avoid actually printing the name counts in cells in a new column? Could I store these values in an array and calculate the max of the array? (maybe there is already a thread on this topic you could point me to?)
ANSWER
Answered 2021-Mar-19 at 23:20QUESTION
So I recently discovered Numba and I am thoroughly amazed by it. When trying it out I've used a bubblesort function as the test function, but since my bubblesort function calls another function I get errors when calling njit on it.
I've tackled this by first calling njit on my bubblesort subfunction, and then having my bubblesort call the njit subfunction, and it works, but it forces me to define two bubblesort functions when trying to compare. I'm wondering if there's another way of doing this.
This is what I'm doing:
...ANSWER
Answered 2021-Mar-20 at 16:09To expand on my comment, you don't need to define new functions but can also map the jit-ed version to the same name. Usually, the most convenient way to do so is to use the @jit
decorator (or @njit
which is short for @jit(nopython=True)
).
QUESTION
I have been searching for fixes for hours. I'm quite sure I am not using them correctly. I have tried using wrappers, negative margin, and even a flex-grow fix. I cannot find anything to fix my problem so I am turning to Stack. In desktop width the footer stays at the bottom presumably because the content isn't growing below the footers position. However, when I change the viewport to a smaller mobile size the content grows and it causes the footer to rise.
...ANSWER
Answered 2021-Mar-10 at 17:32Replace height: 100vh
with min-height: 100vh
, in the css of the body
:
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