Error message rendering multiple times – each time submit button is pressed with empty input field & the error messages remain even after input Problem Description: I am finishing up my coding for a quiz app where questions are rendered one at a time and then finally the results table is rendered. Users can submit … Read more
Is it possible to isolate a BGR color gradient with cv2.inRange()? Problem Description: I am writing a program that observes an area on the screen that displays a number between 0 and 100. When the number is 100, it has green text. When the number is 0, it has red text. As the number decreases … Read more
Can you emit warnings in HLSL? Problem Description: Is it possible to emit warnings in HLSL? If so, how? I know there’s #error keyword in HLSL to emit errors like: #ifndef PI #error "PI is not defined" #endif But I want to do something like this: #if !defined(MAX_SIZE) #warning "Max size is not defined, defaulting … Read more
looping over dataframes and looping over variables in a dataframe Problem Description: Stata user here, having trouble with loops in R. I won’t trouble you with the "how I would do it in stata" caveat; my issue sis that using loops (or apply) I cannot figure out how to properly loop through data frames or … Read more
Python nested loops inside dict Problem Description: I have a dict exchange rates. It has 3 levels: rates, date and currency. "rates": { "2022-11-30": { "AED": 0.06019, "AFN": 1.442036, "ALL": 1.836137, "AMD": 6.464451, "ANG": 0.029525, "AOA": 8.304432, "ARS": 2.741601, ……………. etc. I want to write a loop that first will capture the date in a … Read more
How to force a refresh of a SwiftUI View? Problem Description: I have a button with a .disabled() condition that’s a computed property of my ObservableObject model class. This means I can’t make it @Published. Something like this: class MyModel : ObservableObject { var isDisabled: Bool { if … { return true } else { … Read more
filter a DataFrame using complete word only Problem Description: I have a large DataFrame (named: complete) of data (only two columns). I want to filter it using complete words only, instead of substrings. Ex: complete dataframe: comment sentiment fast running 0.9 heavily raining 0.5 in the house 0.1 coming in 0.0 rubbing it -0.5 if … Read more
Case when then in postgresql doesn't work as expected (on null value) Problem Description: I have this table called people id name lastname 1 John Smith 2 Robert Williams 3 Peter Walker if I run the query select CASE WHEN id is null THEN ‘0’ ELSE id END as id from people where id=’2′ The … Read more
How to use :hover to scale overlap images? Problem Description: I am trying to make a hover effect so when any of the images have the mouse hovering over, the shirt scales to zero and the art scales up. Unfortunately I can’t get this figure out I am very new to this This is what … Read more
How to use :hover to scale overlap images? Problem Description: I am trying to make a hover effect so when any of the images have the mouse hovering over, the shirt scales to zero and the art scales up. Unfortunately I can’t get this figure out I am very new to this This is what … Read more