Gist | A C++ Library for Audio Analysis | Video Utils library
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Gist - An Audio Analysis Library.
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QUESTION
I'm writing a Firebase function (Gist) which
Queries a realtime database ref (events) in the following fashion:
await admin.database().ref('/events_geo').once('value').then(snapshots => {
Iterates through all the events
snapshots.forEach(snapshot => {
Events are filtered by a criteria for further processing
Several queries are fired off towards realtime DB to get details related to the event
await database().ref("/ratings").orderByChild('fk_event').equalTo(snapshot.key).once('value').then(snapshots => {
Data is prepared for SendGrid and the processing is finished
All of the data processing works perfectly fine but I can't get the outer await (point 1 in my list) to wait for the inner awaits (queries towards realtime DB) and thus when SendGrid should be called the data is empty. The data arrives a little while later. Example output from Firebase function logs can be seen below:
10:54:12.642 AM Function execution started
10:54:13.945 AM There are no emails to be sent in afterEventHostMailGoodRating
10:54:14.048 AM There are no emails to be sent in afterEventHostMailBadRating
10:54:14.052 AM Function execution took 1412 ms, finished with status: 'ok'
10:54:14.148 AM
Super hyggelig aften :)
super oplevelse, ... long string generated
Gist showing the function in question
I'm probably mixing up my async/awaits because of the awaits inside the await. But I don't see how else the code could be written without splitting it out into many atomic pieces but that would still require stitching a bunch of awaits together and make it harder to read.
So, two questions in total. Can this code work and what would be the ideal way to handle this pattern of making further processing on top of data fetched from Realtime DB?
Best regards, Simon
...ANSWER
Answered 2021-Jun-15 at 11:20Your problem is that you use async
in a foreEach
loop here:
QUESTION
Consider the following code:
...ANSWER
Answered 2021-Jun-15 at 18:22i think you are looking for this:
QUESTION
ANSWER
Answered 2021-Mar-18 at 15:40You need to define a different surrogate posterior. In Tensorflow's Bayesian linear regression example https://colab.research.google.com/github/tensorflow/probability/blob/master/tensorflow_probability/examples/jupyter_notebooks/Probabilistic_Layers_Regression.ipynb#scrollTo=VwzbWw3_CQ2z
you have the posterior mean field as such
QUESTION
I need a trait that allows me to construct a object that borrows an object that borrows something. In the following example that is PaperBin. https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=78fb3f88b71bc226614912001ceca65b
...ANSWER
Answered 2021-Jun-15 at 13:38Your immediate issue is that T: GarbageBin<'a, 'b>
where 'a
and 'b
are parameters of create_bin_with_rubbish
and must therefore outlive calls to that function—but the actual lifetimes passed to T::new
are only internal to the function and do not therefore satisfy those bounds.
Instead of parameterising create_bin_with_rubbish
with lifetimes 'a
and 'b
, one way to resolve this would be to use instead an HRTB (higher-ranked trait bound):
QUESTION
I want a function that takes two arguments, both of which can be turned into an iterator of Foo
. The snag is that I'd like to accept things which are both IntoIterator
and also IntoIterator<&Foo>
. Importantly Foo
is Copy
so I can cheaply create an owned copy from it's reference.
The solution I currently have is:
...ANSWER
Answered 2021-Jun-15 at 12:22First of all, you don't need exactly IntoIterator
bound here. It's just enough for Iterator
.
QUESTION
I am trying to contribute to a Github Page/Jekyll site and want to be able to visualise changes locally but when I run bundle exec jekyll serve
but I get this output:
ANSWER
Answered 2021-Feb-02 at 16:29I had the same problem and I found a workaround here at https://github.com/jekyll/jekyll/issues/8523
Add gem "webrick"
to the Gemfile in your website. Than run bundle install
At this point you can run bundle exec jekyll serve
For me it works!
QUESTION
I'm declaring some variables then
I'm looping through some data using switch command if an attribute exists it gets assigned to the relevant variable It is possible age will not be found the PostgreSQL Table reflects this
...ANSWER
Answered 2021-Jun-14 at 13:42I see two problems in your code:
- you are trying to use int.TryParse() with nullable int.
- you are trying to cast DBNull.Value into int.
please try something like this:
QUESTION
I have a recursive structure, where field of a structure is a reference to other struct of same type:
...ANSWER
Answered 2021-Jun-14 at 12:14You are using a &, but want a &mut, rust references are immutable by default: Playground: https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=be82b8ba01dff60e106af9e59df8228e
QUESTION
I have a gitlab ce image running via docker-compose
...ANSWER
Answered 2021-Jun-14 at 09:31To be able to connect with ssh, I had to add the following lines in the GITLAB_OMNIBUS_CONFIG environment variable :
QUESTION
I'm trying to extract method parameters information from Java class bytecode using asm MethodVisitor
. visitParameter
method of MethodVisitor
is not called (because no parameter names are present in compiled class file). How can i get count of method parameters and their types?
The only thing I've found so far is desc
parameter of visitMethod
from MethodVisitor
. I can copy-paste TraceSignatureVisitor
class from asm-util, rewrite about 50 lines of code to store parameters declarations into List/array instead of single StringBuffer
.
Another option is suggested by in answer "https://stackoverflow.com/questions/18061588/get-function-arguments-values-using-java-asm-for-bytecode-instrimentation":
The number of arguments to the method can be computed from the method description using the code in the following gist: https://gist.github.com/VijayKrishna/6160036. Using the
parseMethodArguments(String desc)
method you can easily compute the number of arguments to the method.
From my point of view copy-pasting and rewriting TraceSignatureVisitor
is still better.
But i suppose there should be more simple way to work with method signatures in asm-util. Is there?
...ANSWER
Answered 2021-Jun-14 at 07:55ASM has an abstract for that purpose, Type
.
Instances of Type
may represent a primitive type, a reference type, or a method type. So you can first get a type to represent the method type from the descriptor string, followed by querying it for the parameter types and return type.
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