ref | unofficial k referencebuild script
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QUESTION
I was following this tutorial on using React.forwardRef
, where make this component:
ANSWER
Answered 2021-Jun-15 at 20:18Put this at the beginning of your file:
/* eslint-disable react/display-name */
You could also try this:
// eslint-disable-next-line react/display-name
QUESTION
I want to create components dynamically with custom Refs , and I want to use those refs and use with functionalities like measure() etc.
I created following code
...ANSWER
Answered 2021-Jun-15 at 19:50- Yes, React refs need to be forwarded when using functional components.
- You can't use the
useRef
hook within the loop.
Fix creating the refs. Use a React ref to hold an array of created refs, and pass them by mapped index.
QUESTION
I ran into less than ideal inlining behavior of the .NET JIT compiler. The following code is stripped of its context, but it demonstrates the problem:
...ANSWER
Answered 2021-Jun-15 at 19:35The functions Hash_Inline
and Hash_FunctionCall
are not equivalent:
- The first statement in
Hash_Inline
rotates by 1, but inHash_FunctionCall
it rotates bycurIndex
. - For
RotateLeft
you may have probably meant:
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
I have a data frame with important data in varying columns. Here is an example of the data using dput()
ANSWER
Answered 2021-Jun-15 at 13:36Here is what you could do to get your values into a "DP", "DP4" and "IDV" columns :
QUESTION
I am trying to understand the example with incorrect sync code from The Go Memory Model.
...Double-checked locking is an attempt to avoid the overhead of synchronization. For example, the twoprint program might be incorrectly written as:
ANSWER
Answered 2021-Jun-14 at 19:18According to the Go memory model:
There are no guarantees that one goroutine will see the operations performed by another goroutine unless there is an explicit synchronization between the two using channels, mutex. etc.
In your example: the fact that a goroutines sees done=true
does not imply it will see a
set. This is only guaranteed if there is explicit synchronization between the goroutines.
The sync.Once
probably offers such synchronization, so that's why you have not observed this behavior. There is still a memory race, and on a different platform with a different implementation of sync.Once
, things may change.
QUESTION
I want to bind a model to a view. The problem is that it doesn't bind.
...ANSWER
Answered 2021-Jun-15 at 12:22You didn't specify any bindings anywhere. You will need to write something like:
QUESTION
I have a pair of iterator, and I would like to use ranges::views::filter(some_predicate)
on it (with the pipe operator). AFAIU I should first convert my pair of iterator into a view. I tried to use ranges::subrange(first, last)
to do so, but I’m getting horrible error messages.
Note1: I’m using C++14 and range-v3 version 0.9.1 (the last version compatible with gcc-5.5). If the solution differs when using C++17/20 and/or when using C++20 std::ranges, I’m also interested to know what changed.
Note2: I find the documentation of range-v3 severely lacking, so I’m using cppreference.com. If you know a better documentation, I’m very interested.
EDIT:
In my real code, I’m wrapping a java-style legacy iterator (that has a next()
method instead of operator++
/operator*
. I’m wrapping them in a C++-compatible wrapper. Then I tried to convert that wrapper into a view, and finally filter it. I reproduce a minimal example on godbolt. This use iterator_range
as suggested, but it still doesn’t compile (see the second edit below).
ANSWER
Answered 2021-Apr-08 at 16:24In ranges-v3, there is iterator_range
which you can use to wrap the iterators into a range object.
In C++20, you can use std::span
to wrap those iterators into an range object
QUESTION
We are experimenting with Jetbrains Space as our code repo and CI/CD. We are trying to find a way to setup the .space.kts
file to deploy to AWS Lambda.
We want the develop
branch to publish to the Lambda $Latest
and when we merge to the main
branch from the develop
branch we want it to publish a new Lambda version and link that version to the alias pro
.
I've looked around but haven't found anything that would suggest there is a pre-built solution for controlling AWS Lambda so my current thinking is something like this:
...ANSWER
Answered 2021-Jun-15 at 11:09There is no built-in DSL for interacting with AWS.
If you want a solution that is more type-safe than plain shellScript
, and maybe reuse data between multiple calls etc, you can still use Kotlin code directly (in a kotlinScript
block instead of shellScript
).
You can specify maven dependencies for your .space.kts
script via the @DependsOn
annotation, which you can use for instance to add modules from the AWS Java SDK:
QUESTION
I am trying to download zip file of my repository using api but can not do so.
GitHub doc: github-download-zip-ref
What is the problem with my code? Thanks for your help .
I get only 404: not found error
ANSWER
Answered 2021-Jun-14 at 02:14Your first problem can be that you use word ref
in url.
It has to be (probably) branch name
or empty string
for master/main branch.
Other problem can be that your repo is empty so there is nothing to download. But I couldn't check it because I don't have empty repo and I was using Private Token to access only my repos.
Minimal working code which I used for tests.
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