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QUESTION
I am trying to consume data from context, into a custom hook. the problem is that the data is not ready and the hook takes the default values. How can I make my custom hook take the updated values once the context is ready?
timer context
...the context expects two values that I get from the database
ANSWER
Answered 2022-Apr-08 at 07:47The problem here is that the useCounterHook
is running the useEffect
based on the first time it is mounted and then never accounts for when the timer
values change.
If you make use of the useEffect
dependency array you can resolve this.
Update the useEffect
in your useCounterHook
to the following and you should be good to go:
QUESTION
I have a web page - index.html on a localhost webserver - split horizontally via DIV elements and a CSS stylesheet into upper / lower panes.
Titles (hyperlinked to source HTML documents) appear in the upper split.
...ANSWER
Answered 2022-Apr-02 at 20:37There are multiple ways to achieve this. But one of the simplest way is below.
In your example you are sending the target to an iframe. And you also want to send additional data(snippets) to the same iframe if I understood it correctly.
To pass additional data which is the snippets, you can do that by passing as url params like below.
QUESTION
Dear Stackoverflow community, I am writing this question because I have a problem when plotting an analysis I have performed on a dataset in archaeology. It turns out that I have performed a discriminant analysis by canonical functions, following an example from archaeology professor David L. Carlson, and at the moment of viewing the biplot graph of his data set the graph is shown without problems, where the number of cases associated to the centroids is observed. What happens is that when I plot my data set, the biplot graph I get does not show the number of cases associated with the centroids, I have tried several times but I can not, and I do not know if I have a problem with my data set.
The syntax of the Roman Pottery developed for professor David L. Carlson are shown below:
...ANSWER
Answered 2022-Mar-16 at 02:00The problem is that Congo_DMA_2$Cluster
must be a factor, not a character vector. Older versions of R made this conversion automatically when creating a data frame, but the current versions do not. Just add the following line to your code after creating Congo_DMA_2
:
QUESTION
I am trying to open a new tab as long as certain conditions are met. To do this, I understand that target="_blank
" is used in the html form
, the problem with this is that they will open regardless of whether or not the condition is met. How can I make it happen only when the condition is met?
This is my ActionResult
with which I control the conditions:
ANSWER
Answered 2022-Mar-15 at 18:15What you are asking cannot be done from within the Controller
itself.
You need it do this on from your View
. For this you can apply the target
attribute on your form
while posting to your Controller
.
Now you have already mentioned that you do not want this to happen but rather you want it to happen on a condition inside your Controller
:
QUESTION
I'm developing an app which has to fetch new orders from the Firestore database, I used componentDidMount
to refresh the screen every 10 seconds and launch the fetchNewOrders
function, if new orders are available, the function should push that object into the state array newOrder
, and display the orders in the FlatList below. When I start the code it returns the error TypeError: undefined is not an object (evaluating 'item.id')
, I also wrote the example of an array I'm fetching from the database.
Screen
...ANSWER
Answered 2022-Feb-28 at 18:05I would suggest filtering your data (this.state.newOrder) first. This would make it so that you only display items that have ids.
Suggested Change:
QUESTION
It's my first Kafka program.
From a kafka_2.13-3.1.0
instance, I created a Kafka topic poids_garmin_brut
and filled it with this csv
:
ANSWER
Answered 2022-Feb-15 at 14:36Following should work.
QUESTION
I have a dataset from participants that provided liking ratings (on a scale from 0-100) of stimuli associated with rewards of different magnitudes (factor pval, with levels small/medium/large) and delay (factor time, with levels delayed/immediate). A subset of the data looks like this:
...ANSWER
Answered 2022-Feb-14 at 22:54Regarding the first question: As is true of most summary
methods, the returned object is just a summary, and it doesn't contain the information to convert it back to an object like the one that was summarized. However, the original emmGrid
object does have all the needed content.
The other barrier is trying to work from the contrasts you don't want rather than getting the ones you do want. It is usually best to do the means and contrasts in two separate steps. It is quite simple to do:
QUESTION
import asyncio
import re
import time
from datetime import datetime
detection_timer = 0
detection_timer_increment = 5
detection_timer_change = 10
x, y , z = None, None, None
x_aux, y_aux, z_aux = 0, 0, 0
def get_coords(input_coords):
input_coords = input_coords.replace("@","0") #convierte todos los posibles caracteres @ en caracteres 0
m = re.match(r".*:\s*([0-9.]*?)\s*,\s*([0-9.]*?)\s*,\s*([0-9.]*?)$", input_coords) #No agarra los numeros negativos
if m:
return m.groups()
async def timer():
global x, y, z, x_aux, y_aux, z_aux
global input_coords
global detection_timer, detection_timer_change
detection_timer += detection_timer_increment
#Debe entrar a este if cara cierto tiempo
if(detection_timer >= detection_timer_change):
detection_timer = 0 #resetea contador
#detect_color()
r = get_coords(input_coords)
if r:
x_aux = x = float(r[0]) if r[0] else x
y_aux = y = float(r[1]) if r[1] else y
z_aux = z = float(r[2]) if r[2] else z
return x_aux, y_aux, z_aux
while True:
#Some examples of possible inputs
#input_coords = "Coordenadas: @, 63, -5|hhhf♀"
#input_coords = "Coordenadas: @, 63.5, -5.695|hhhf♀"
#input_coords = "Coordenadas: @, hhkjkm♀-63ss, -5|hhhf♀"
#input_coords = "Coordenadas: -8, 63, -5 \n♀"
input_coords = "Coordenadas: @, 63, -5"
x_aux, y_aux, z_aux = asyncio.run(timer())
if(x_aux != None and y_aux != None and z_aux != None):
print(x_aux)
print(y_aux)
print(z_aux)
...ANSWER
Answered 2021-Dec-22 at 06:54Looks like you could simply this greatly by just finding the numbers and padding with zeros on the left if you have less than 3 values:
QUESTION
I am trying to test Estes Express Freight API and have ran into a problem. I have the request object set up (and get expected error response back) except for the commodity part. There wsdl does not include a direct match such as commodity, basecommodity, or full commodities in their request class but just give an item as object type.
...ANSWER
Answered 2021-Dec-16 at 17:14I would create a List Like:
QUESTION
I wanted to upgrade some things through HomeBrew, but it seems like it broke my Postgres.
I'm on MacOS. I need to be able to run my Postgres again. Deleting without backups isn't much of a problem: this is a local dev setup.
Long sequence of operations for upgrading and debuggingI ran:
brew update
brew upgrade
Which output:
...ANSWER
Answered 2021-Dec-09 at 15:43Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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