dilemma | TTY selection prompt for Go programs | Command Line Interface library
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kandi X-RAY | dilemma Summary
TTY selection prompt for Go programs
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QUESTION
While looking for the way to avoid rendering of a component after each change in input field I came across a suggestion to use useRef instead of onChange event for state update. It seems ok in simple components, but since I am a beginner I do not know is this a good approach in more complex applications. Shell I continue this way or I should stick back to onChange event? I searched a lot to resolve this dilemma but was not able to find explicit answer. Any suggestion in this regard will be more tan welcomed.
This is how it looks in a component:
...ANSWER
Answered 2021-Feb-11 at 18:33The approach you use are called uncontrolled form elements, and are alternative to controlled elements on official docs. In most cases React recommends to use controlled ones, but I suppose it is no harm to use the uncontrolled ones too if you wish.
In most cases, we recommend using controlled components to implement forms. In a controlled component, form data is handled by a React component. The alternative is uncontrolled components, where form data is handled by the DOM itself.
QUESTION
I installed the python-kasa library to control TPLink smart home devices from my local server. while issuing commands from the command line is simple, I'm trying to execute them in Bash based on result of the query. My dilemma is purely my coding ability and I'm looking for a push in the right direction. what I would like to do is along the lines of the following syntactically incorrect mess:
...ANSWER
Answered 2021-May-24 at 05:05Something like this maybe?
QUESTION
Given following source code which need to be maintained within a class library project:
...ANSWER
Answered 2021-Jun-04 at 05:45A shared project can be created in Microsoft Visual Studio which acts a central repository that contains the source codes or files.
The project itself doesn't require any references which can then be added as reference for version specific projects.
When open the source code in editor, one can easily switch between the context of referenced projects to make sure everything's good in case there are any conflict due to different dependencies.
The final project structure would then looks similar to:
Product version Project type Newtonsoft.Json version All Shared N/A 1 Class library 10.0.1 2 Class library 11.0.1 3 Class library 12.0.1P/S: This feature has been around for quite some time and I just recently found out about it, hopefully the information provided helps!
Extra: channel 9 video - Sharing Code Across Platforms With Visual Studio 2015
QUESTION
Context:
My data analysis involves manipulating ~100 different trials separately, and each trial has >1000 rows. Eventually, one step requires me to combine each trial with a column value from a different dataset. I plan to combine this dataset with each trial within an array using left_join() and "ID" as the key.
I want to mutate() the trial name into a new column labeled "ID". I feel like this should be a simple task, but I'm still a novice when working with lists and arrays.
I don't know how to share .csv files, but you can save the example datasets as .csv files within a practice folder named "data".
...ANSWER
Answered 2021-May-28 at 04:13library(tidyverse)
# Create practice dataset
df1 <- tibble(Time = seq(1, 5, by = 1),
Point = seq(6, 10, by = 1)) %>% print()
#> # A tibble: 5 x 2
#> Time Point
#>
#> 1 1 6
#> 2 2 7
#> 3 3 8
#> 4 4 9
#> 5 5 10
df2 <- tibble(Time = seq(6, 10, by = 1),
Point = seq(1, 5, by = 1)) %>% print()
#> # A tibble: 5 x 2
#> Time Point
#>
#> 1 6 1
#> 2 7 2
#> 3 8 3
#> 4 9 4
#> 5 10 5
write_csv(df1, "21May27_CtYJ10.csv")
write_csv(df2, "21May27_HrOW07.csv")
rm(df1, df2)
QUESTION
Out of sheer curiosity I would like to know how this quoting dilemma can be fixed. I already solved the issue by circumnavigating it (I added [vcodec!*=av01] to the -f argument and simply removed the --exec part entirely). Otherwise it only worked, when there were no spaces or minus signs in the --exec argument. The culprit line is the last and the issue is at the end with the --exec argument. You can ignore the rest.
Thanks for your help on the road to enlightenment! ;-)
...ANSWER
Answered 2021-May-26 at 18:16Use another function to save you from the double indirection in a single command (parallel
executes youtube-dl
that executes avtomp4conv
). GNU parallel
uses your current shell to execute its commands, so no need for bash -c
here.
QUESTION
I have a use case in which I need to create an AWS Glue Crawler to crawl some data stored in S3, start the crawler, then delete the crawler after it has finished crawling the data.
The dilemma I've ran into is that the crawler can take a significant amount of time to complete, sometimes taking 20-30 minutes to finish crawling the actual data before it can be deleted.
Initially I had intended to solve this with the AWSGlueAsyncClient, so that rather than blocking the calling thread for 20-30 mins, I could just write a callback so that when the crawler finished, it would immediately be deleted.
The issue with this is that if the server was to go down or be interrupted during this 20-30 minute window the crawler takes to complete, it would no longer get deleted.
What would be a good means to persist the crawler deletion step so that even if the server were to go down, it would still attempt to delete the crawler after it started back up again? A database seems like overkill.
...ANSWER
Answered 2021-May-26 at 02:36You can setup EventBridge rule to trigger a lambda function when a crawler completes. The function would then delete the crawler. Example rule is:
QUESTION
I am currently stucked and confused with Flutter.
I have a FutureBuilder as below:
...ANSWER
Answered 2021-May-25 at 10:56Reference: https://api.flutter.dev/flutter/widgets/FutureBuilder-class.html
The future must have been obtained earlier, e.g. during State.initState, State.didUpdateWidget, or State.didChangeDependencies. It must not be created during the State.build or StatelessWidget.build method call when constructing the FutureBuilder
Your issue is related to this:
If the future is created at the same time as the FutureBuilder, then every time the FutureBuilder's parent is rebuilt, the asynchronous task will be restarted.
You call the future function to initState. Future function call only one time.
QUESTION
I am new to pandas and I am trying to carry out some EDA on my twitter dataset. Dataset column
Link to Dataset : https://www.kaggle.com/kaushiksuresh147/the-social-dilemma-tweets
Dataframe Sample : Sample dataframe
I want to filter new users created (from the user_created column) between "2020-09-08 and 2020-09-22" and then group the results with the sentiment column. I also want to count the total number of tweets created from this new users within that period and compare it with the overall number of tweets from other users which are not in the selected range(2020-09-08 and 2020-09-22).
I have tried an approach and my code keeps giving me the error message : KeyError: 'user_created'code snippet
I also tried this code which also gives me error message:KeyError: 'user_created'2nd code
...ANSWER
Answered 2021-May-24 at 04:50I think start
and end
should be in datetime format (datetime.datetime
, np.datetime64
, or pd.Timestamp
), not in string format.
QUESTION
I have created a simple program to collect some data from the internet by downloading a zip file and accessing its contents using Python.
The program downloads the zip file and extracts it using ZipFile.extractall(). Then I use Python open() method to read the extracted files.
I need the data to be collected daily, so I have pasted a shortcut of the original program in the startup directory, so that everytime I start my laptop, the program starts the execution.
On running the program using python IDLE, the program runs perfectly, without errors, as shown:
But when the program is being executed automatically on startup, the program is run as an .exe file, and gives me the permission denied error:
Using print() statements I have cornered the code which is producing the error:
...ANSWER
Answered 2021-May-23 at 05:56extractall()
extracts files to the current working directory, which is not necessarily the directory the archive file you are extracting from is located.
You can determine the current working directory with
QUESTION
I've been practicing with Oracle SQL Developer for some time using school assignments and encountered some kind of dilemma while doing the Entity Relationship Diagram for one of those, here's my issue:
On the assignment they mention that there's a CLIENT entity with certain attributes, and if this CLIENT is married, they'll ask for the partners_name, if not married, they'll ask for this person's date_of_birth. How would you approach this situation? Because I've been told that "there's no right answer", but I imagine that there must be a standard, or more popular way of solving these type of situations, and I imagined two options, which I'll show of course.
OPTION 1: So, I thought that maybe I can add both attributes to the CLIENT entity, and make them optional and having something like this:
My personal issue with this is that I'd be creating a situation in which both can be null, when they tell me explicitly that if CLIENT is married then assign partners_name, if not date_of_birth, it sounds mandatory for one or the other. I mention this option despite of what I just said, because I don't know if they actually do it anyways out there.
OPTION 2: Creating subtypes, one for a CLIENT that is single and another one for those who are not.
This does address the previous issue with date_of_birth and partners_name now being mandatory, but by doing this I'd be creating two more tables? (I haven't explored subtypes outside of Data Modeler, so I'm not sure of how this will translate into SQL Developer).
When I did this assignment I went with Option 1, but to this day I keep wondering if Option 2 would've been better, I do think that, but my concern is... Is it worth for this case to have two extra entities such as MARRIED and SINGLE? Which could mean two extra tables, considering that they only have one attribute. Is there another option that I don't see or know about? Maybe, I'd really like to hear opinions from people that know more about this and have seen way more cases than me.
NOTE: I did a bit of research as well, like trying to find PROS for the second option, this is what Oracle has to say about supertypes and subtypes at least. Also found this one, it's a bit similar I think, but not exactly, so I'd rather make my own question.
Thank you for your time everyone.
...ANSWER
Answered 2021-May-23 at 00:21Is it worth for this case to have two extra entities such as MARRIED and SINGLE? Which could mean two extra tables
They would not have any extra tables. For example, given your objects:
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