tania | PHP based , free , and open source farming management system | Web Framework library

I'm trying to learn React Hooks in functional components, and am following along with React Hooks tutorial but am getting the error: Cannot update a component (App) while rendering a different component (UserTable), and the error stack indicates this is related to the onClick={props.deleteUser(user.id)} property in the delete button in UserTable.js. I saw several posts indicating that one should try useEffect() to get around this issue, so I tried having deleteUser update a state variable, and then have useEffects change the users array. While the code compiled fine, the page simply hung and eventually timed out with an "out of memory" error (I assume caused by an endless cycle of trying to render and re-render?). Any ideas how to fix this situation?

App.js

I am trying to split the following standard: This is column B

My problem is this I have a txt file name file.txt with the data. I need to input this for do some calculations,this how the code run:

I am trying to do the following:

I have two different tables:

table_a

table_b

Would I would like to get is this:

Thank you in advance

This is my code:

I am reading a CSV file with Java. I am storing each value between commas into a String Array.

This is what prints when I read a CSV line:

Tania, Joe, Pat, , , , , , ,

When I store this line into a String Array: String [] myString = line.split(",");

I get this output when I print my string: [Tania, Joe, Pat]

And I want to get: [Tania, Joe, Pat, , , , , , ,]

I want to store the empty spaces as well.

I would like to have some text next to an element that has a position of relative and children with positions of absolute. Following Tania Rascia's tutorial I have created 2 crossfading images, it uses position:absolute to put the images on top of each other, so that they can fading into each other. However, because position:absolute takes the iamges out of the 'flow' or the page, this means that the text from the page is behind the crossfading images.

I have tried applying display:inline-block to the parent of the images and the images themselves, but this hasn't changed anything. I am still new to CSS any tips would be helpful.

i am trying to make a CRUD app in DRF-Reactjs by following Tania rascia's example

i have successfully implemented add, delete, list view. but i am trying to edit a specific row which is not updating in DRF backend. but the edited row is shown in the frontend list. why it is not updating in django admin list?

in DRF side views.py:

I hope someone can help me with this error.

I'm collecting the price of a cryptocurrency every millisecond using a websocket. The information it brings me is like this:

Recent Trades: [{'timestamp': '2021-02-20T01:15:37.264Z', 'symbol': 'XBTUSD', 'side': 'Sell', 'size': 637, 'price': 56302.5, 'tickDirection': 'ZeroMinusTick', 'trdMatchID': 'b89d919f-01c9-e510-a141-f01785bff8da', 'grossValue': 1131312, 'homeNotional': 0.01131312, 'foreignNotional': 637}, {'timestamp': '2021-02-20T01:15:38.256Z', 'symbol': 'XBTUSD', 'side': 'Sell', 'size': 592, 'price': 56302.5, 'tickDirection': 'ZeroMinusTick', 'trdMatchID': '2b213054-d62a-55a7-fcef-5aa183f24e2c', 'grossValue': 1051392, 'homeNotional': 0.01051392, 'foreignNotional': 592}, {'timestamp': '2021-02-20T01:15:38.521Z', 'symbol': 'XBTUSD', 'side': 'Buy', 'size': 8070, 'price': 56303, 'tickDirection': 'PlusTick', 'trdMatchID': '63fdc9ac-1c86-8507-58d6-054755304bf5', 'grossValue': 14332320, 'homeNotional': 0.1433232, 'foreignNotional': 8070}, {'timestamp': '2021-02-20T01:15:38.521Z', 'symbol': 'XBTUSD', 'side': 'Buy', 'size': 29832, 'price': 56303, 'tickDirection': 'ZeroPlusTick', 'trdMatchID': '6f93d2f3-f679-80ab-5e89-0ae1dfc2d84d', 'grossValue': 52981632, 'homeNotional': 0.52981632, 'foreignNotional': 29832}, {'timestamp': '2021-02-20T01:15:38.521Z', 'symbol': 'XBTUSD', 'side': 'Buy', 'size': 1023, 'price': 56303, 'tickDirection': 'ZeroPlusTick', 'trdMatchID': '6a058aec-a6e2-83d0-5c39-29bb00537049', 'grossValue': 1816848, 'homeNotional': 0.01816848, 'foreignNotional': 1023}, {'timestamp': '2021-02-20T01:15:38.521Z', 'symbol': 'XBTUSD', 'side': 'Buy', 'size': 1172, 'price': 56303, 'tickDirection': 'ZeroPlusTick', 'trdMatchID': 'c1ff8488-1bc9-9167-ae80-7b579c01df4b', 'grossValue': 2081472, 'homeNotional': 0.02081472, 'foreignNotional': 1172}, {'timestamp': '2021-02-20T01:15:38.521Z', 'symbol': 'XBTUSD', 'side': 'Buy', 'size': 9903, 'price': 56303, 'tickDirection': 'ZeroPlusTick', 'trdMatchID': '184cd0bf-f157-1cd7-3676-af6607cd1f07', 'grossValue': 17587728, 'homeNotional': 0.17587728, 'foreignNotional': 9903}]

It is a variable length data set. It can bring 20, 130, 150, 84, but not more than 200. What I do with that data is to convert it into a dataframe to extract only the last data of the set and insert it into a csv. It actually works fine, but after some time, maybe 10 min. I get this error. I was trying with some solutions to this kind of problems, but the truth is that I couldn't solve it.

This error had not appeared before, I was even testing the code in a test environment and everything went quite well. First I started to get an error concerning the key to extract the last element of the data. I changed it to the one below, but now I get this error.

The error:

Traceback (most recent call last): File "C:\Users\tania\AppData\Local\Programs\Python\Python37\lib\si mgr = BlockManager(blocks, axes) File "C:\Users\tania\AppData\Local\Programs\Python\Python37\lib\si self._verify_integrity() File "C:\Users\tania\AppData\Local\Programs\Python\Python37\lib\si construction_error(tot_items, block.shape[1:], self.axes) File "C:\Users\tania\AppData\Local\Programs\Python\Python37\lib\si raise ValueError(f"Shape of passed values is {passed}, indices i ValueError: Shape of passed values is (110, 10), indices imply (111, return create_block_manager_from_arrays(arrays, arr_names, axes) File "C:\Users\tania\AppData\Local\Programs\Python\Python37\lib\site-packages\pandas\core\internals\managers.py", line 1675, in create_block_manager_from_arrays construction_error(len(arrays), arrays[0].shape, axes, e) File "C:\Users\tania\AppData\Local\Programs\Python\Python37\lib\site-packages\pandas\core\internals\managers.py", line 1694, in construction_error raise ValueError(f"Shape of passed values is {passed}, indices imply {implied}")
ValueError: Shape of passed values is (110, 10), indices imply (111, 10)

or this error

Traceback (most recent call last): File "c:/Users/tania/OneDrive/Escritorio/bot/bitmex_ws/main-pandas.py", line 57, in init ) mgr = arrays_to_mgr(arrays, columns, index, columns, dtype=dtypete-packages\pandas\core\i) File "C:\Users\tania\AppData\Local\Programs\Python\Python37\lib\site-packages\pandas\core\internals\construction.py", line 74, in arrate-packages\pandas\core\iys_to_mgr ays return create_block_manager_from_arrays(arrays, arr_names, axes) te-packages\pandas\core\i File "C:\Users\tania\AppData\Local\Programs\Python\Python37\lib\site-packages\pandas\core\internals\managers.py", line 1675, in createmply {implied}") _block_manager_from_arrays 10) construction_error(len(arrays), arrays[0].shape, axes, e)
File "C:\Users\tania\AppData\Local\Programs\Python\Python37\lib\site-packages\pandas\core\internals\managers.py", line 1694, in construction_error raise ValueError(f"Shape of passed values is {passed}, indices imply {implied}") ValueError: Shape of passed values is (108, 10), indices imply (109, 10)

This is the part of my code: