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javascript - Getting "TypeError: Cannot read property 'arrayUnion' of undefined" when trying to update an array in firestore

I'm receiving the following error message when trying to update an array in cloud firestore: TypeError: Cannot read ... an array Any help would be greatly appreciated!! Thanks....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Using SplashKit my program is not showing the results mentioned in comment

I am using the SplashKit software toolkit here: https://www.splashkit.io/ //Error in the code is that, the score ... (screen_height()) - bitmap_height(Some_tHiNg); } } return 0; }...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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uwp - What are numbered list, Increase Indent, and Decrease Indent icons in Segoe MDL2 Assets?

For our UWP app, where can we find the Numbered Listt, Increase Indent, and Decrease Indent icons in Segoe MDL2 ... . Otherwise, there are plenty of such icons available online....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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.net - Powershell MySQL Delete return exception

Powershell MySQL Delete return exception Hi, I have a script written in Powershell that delete row from a table ... '0'" Write-MySQLQuery $DBconnect $delNIC Thanks for your help...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Simulating occurs_check=error in SICStus Prolog

It turns out that SICStus Prolog doesn't have an occurs_check Prolog flag. At least we couldn't find one, and this ... : ?- unify_with_occurs_check_and_error(X, f(X)). ERROR: ......

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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php - Laravel Job fails during execution: method_exists()

We are running on Laravel 6 and we have got the following problem. A job we execute, that counts the number of impressions ... user_id, $request->type, $date); } } Thanks a lot!!...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - Is it possible to use Formik recursively?

I have an object: { name: 'someName:', children: [], description: 'someDescription' } And I want to push the same ... could they share an example or explain how they've done it?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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templates - Can anyone tell me how to show sticky header bar always visible in Blogger's Contempo and Essential Theme?

It only appears when I scroll up which is nice, smart and useful, but I wanna make it always visible. please tell me how....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Can I develop Kivy application for iOS on Windows?

I am trying to build an iOS application using Kivy, is it possible to pack this application using Windows machine?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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linux - How to replace '>> $log_file 2>&1' from all files

In my files commands are like : File1.sh: log_file='20210101' echo -e " Output is " >> $log_file 2>&1 File2.sh echo "Something" ... sed -e 's/">> $log_file 2>&1"/""/g' test.sh...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - How can I detect text behind a certain word?

my name is Dillion and I am currently working on a project to read values of cryptocurrency basically my program so far ... Dollar" so i can also include the value of bitcoin?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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pandas - For loop over dataframe python

i have dataframe called df_civic with columns - state ,rank, make/model, model year, thefts. I want to calculate AVG and STD of thefts for ... .0 20.51 15 9.0 20.51 3 9.0 20.51 2...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Find element in a script tag beautiful soup

I am new to beautiful soup, and I'm trying to find a way to search if an element exists within the script tag, but I keep ... ' in s: print('exist') else: print('not found') Thanks...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Why does Tkinter image not show up if created in a function?

This code works: import tkinter root = tkinter.Tk() canvas = tkinter.Canvas(root) canvas.grid(row = 0, column = 0) photo ... ) root = tkinter.Tk() test = Test(root) root.mainloop()...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Nlohmann json parser crashing while parsing json string

I am using the nlohmann parser to parse a json string, but my code is crashing. My code const std::string& dataStr; ... big(~20K chars). Any help appreciated, thanks in advance....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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matplotlib - How to use find_peaks for spectrum (python)

I need to automatically find a specific peak to process hundreds of spectra quickly. I have refocused the search for ... do to get a better result from the find_peaks function ?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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300 views

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swift - iOS 14 Widgets with greater configuration capabilities

I want to add more advanced configuration options to my iOS 14 Widgets. This is what I've been working with: struct ... black. What would be a better strategy to implement this?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - Prevent API call in component when navigating back to it

I have the following components: App: the root component, which contains the routes to other components using React ... idea a good solution? Are there other, better solutions?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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160 views

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How to turn a list of strings to an array in javascript

I am trying to code a program which when a user inputs some numbers it will reverse it it and display it on the ... i wanted This works though: Working code but not what i wanted...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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PHP exec() java jar doesn't detect default printer, jar works OK and send to printer in windows 10

I am working on a project developing a kiosk web app, the project is a demo of kiosk devices, so i need to ... but works ok if it is called from windows explorer double clicking...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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261 views

1 answer

c# - Xamarin.iOS get image filepath for attaching in email

I have a method that takes an image that was previously downloaded to the phones gallery and attaches it to an email. This works ... to pass details to email client", "Okay"); } }...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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276 views

1 answer

wave - Read 8 channel data rom wav file python

Read 8 channel data rom wav file python We have solution to read 2 channel data or splitting wave file into single ... read 8 channel data (rate and samples) in single array....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Trying to flip columns and rows in an array in python. I can print them, but not sure how make them into a new array

Lets say I have a 9x9 2D array testboard = [ [7,8,0,4,0,0,1,2,0], [6,0,0,0,7,5,0,0,9], [0,0,0, ... these columns into a new array, of lists. How could I get these into a new array?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Blender: trying to recreate a building using subdivision, but having problems

I'm trying to create this building in blender ( the honeycomb shaped one ): I tried subdividing areas but I just end up ... the knife tool, is that an alright way of doing it....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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node.js - Nginx + React Router and proxy_pass

Does someone know how to set proxy_pass to exact path. I have React app that works with node server. const express = require(' ... by url example2.com/build/.......js Any clues?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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391 views

1 answer

python - error on favicon while charging page on flask instaled on a nano jetson

i tried to move a page that i made in my x86 cpu, but when i tried to put it on work in a nano jetson, i ... that hope you people can help me whit this issue, thanks in advance...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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234 views

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c - How do I read a file, take the file content (which is just simple characters) and put them in a variable to compare?

So I have an assignment for hs and honestly I do not know how to program in C so I would appreciate all the help I can ... to try what I am trying would be good as well. Thank you!...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Is it possible to chr() a string?

I am sure this question has already been asked, so forgive me for the duplicate. Python's chr() function returns ... the functionality I am looking for? Many thanks in advance....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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