fsc | A set of themeable WPF File System Controls | Theme library

I'm trying to compile an F# program that wants to use arbitrary precision rational numbers. The source code contains

I am trying to build report pulling all rows where the columns of 2 of the tables billing.billed_date or indiv_response.date_submitted that show date later then say 10/20/2021 but then also want to narrow that result down to show only rows where the billed_date is prior to the date_submitted and leave any rows where the date submitted also might be blank or null. so for my initial where clause i had it as WHERE billing.billed_date >= '2021-10-20' OR indiv_responses.date_submitted >= '2021-10-20' and this gives desired initial result of showing all rows where either billed_date or date_submitted are greater than or = to the given date. If i then add an AND to limit to rows (billings.billed_date >= '2021-10-25'OR indiv_responses.date_submitted >= '2021-10-25') AND billings.billed_date < indiv_responses.date_submitted where the billed_date is < date_submitted this pares it down further but i lose all the entries where no date was put into date_submitted yet. is there some way to word the where clause here to show the rows where billed_date is < date_submitted and also show the date_submitted that are null

As an example these are few rows that return for billed_date after 10/20/2021 but there wasnt a submitted_date yet. but if i try to add the billed_date is < date_submitted i lose all these rows ,since null value is not < an actual date.

I'm trying to replace a string in a unstructured list that I moved to one column in a Pandas dataframe:

I have a list of lists and need to change the delimiter to '|':

My project runs on .NetFramework 4.8, and is (among other packages) dependant on FSharp.Data 3.3.3.

I am trying to upgrade the package, but i get the error:

I did some readings on this, seems the best option would be to use the pivot function, but I'm still having trouble putting it to actual use.

I have simplified my code below:

I am a beginner level in swiftui. I begin a bible app as a starter's project. I create a Setting and from that setting, I want to change my font size by using a picker. It's been 4 days that I am searching online for a solution, and I couldn't figure out what should I do.

Question 1: I don't know how to update the font size based on the picker selection. Some say to use .onChange, but I don't know how to do it. So, I tried using a switch case method, but still don't know how to update the text. Also, I tried using custom modifiers to replace .font(.footnote) something like that. But still, I don't know how to update it and EnvironmentalObject doesn't helpful at all. Please guide me on how to solve the issue.

Question 2: Every time I play the canvas, the picker selection always starts from the default index which makes sense. But in the actual app, does it always starts with the default index after the user selected a different index or what should I do in order to keep the preselected index.

Here is my code:

I'm initializing all values of a python dict to 0 in the following code:

I am trying to parse a JSON string, the issue is the API would return an empty string which is in the form on a Linq.JValue datatype and the other time it would return a child with type Linq.JObject. I want to handle both the responses in a dynamic manner, I am struggling to differentiate these two.

Example responses -