16,368 questions
0
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5
views
Why is "const { userId } = await auth()" returning null using Clerk on a Next.js app?
I'm encountering an issue where userId returned by Clerk's auth() helper is null, even though I'm wrapping my application with the ClerkProvider. Below are the details of my setup and code:
Docs: ...
- 1
0
votes
0
answers
5
views
Set DatePicker to null when getting ESLint and Prettier errors for null and undefined?
I am trying to give my custom DatePicker an initial value of null/make the date empty. I've tried setting the initial state to both null and undefined, but I get either a ESLint or Prettier error that ...
- 1
-1
votes
1
answer
26
views
Why doesn't the mysql if function convert nulls?
I have a mysql database where some table uses the entity attribute value anti-pattern. I need to query that table and pull in attributes. I'd like to have them as booleans, i.e., where the left join ...
- 8,368
0
votes
0
answers
16
views
What does /null appended to the URL mean in Google Analytics
For some reason, we're having this report in Analytics where /null is getting added to the URLs like /this-is-a-page/null. Something to note is that when I go to the page and added something in the ...
- 489
1
vote
2
answers
50
views
Exception has occurred. _TypeError (Null check operator used on a null value) error on widget model
This is my code to show thumbnail or food image in my homescreen. But i dont know why the image doesnt appear in my emulator and its showing _TypeError (Null check operator used on a null value) at ...
- 181
0
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0
answers
58
views
How to ensure that NULLs from the database are exported to Excel spreadsheet as NULLs (or blanks cells) and not 0s
I am trying to export the results of a stored procedure to an Excel spreadsheet. However, although the database has some values of 0 (for temperature and hours of use) which are relevant values, it ...
0
votes
1
answer
30
views
Excel de on,t need Filter function to replace null with 0
I am using the filter function but it replaces null cellules's values with 0 , this causes wrong sum and avereges for my sheet .
How to let null values using this filter function please?
Thanks
- 11
0
votes
3
answers
57
views
Check if specific value in a series is NaN
I have a Dataframe where I want to derive a Boolean column based on some other columns, including a check on whether a particular column is NaN:
def secret_sauce(my_row):
if (pd.isna(my_row["...
- 8,700
3
votes
1
answer
91
views
Polars - How to extract last non-null value on a given column
I'd like to perform the following:
Input:
df = pl.DataFrame({
"a": [1,15,None,20,None]
})
Output:
df = pl.DataFrame({
"a": [1,15,None,20,None],
"b": [0,14,...
- 191
1
vote
1
answer
35
views
How can i pass null as a value instead of "null" in formData?
const formData = new FormData();
const fields = {
title: bookingTitle,
image: image,
phone_number: phone || null
};
Object.entries(fields).forEach(([key, value]) => {
...
- 35
2
votes
2
answers
78
views
Struct with fields of List type, but set to null: Heap allocation?
Consider a struct like this:
struct ExampleStruct
{
public int ID;
public List<ExampleStruct> children;
}
Would the following line of code create an object on the heap?
ExampleStruct ...
- 1,186
0
votes
2
answers
48
views
Null check operator exception on a single computer
The app I've developed is made to be run on Windows and made in flutter: it has been on production for more than a year and is running on probably around a hundred different computers on different ...
- 1,408
2
votes
2
answers
85
views
.NET 8 & Blazor components nullable warning with @ref
From what I understand the recommended method to hide null warnings on services is the following:
[Inject] private IExampleService ExampleService { get; set; } = default!;
https://learn.microsoft.com/...
- 23
1
vote
1
answer
40
views
Polars read_database_uri() failing on `NULL as col` column in sql query
I am able to read data from SQL with nulls, unless a column is created like NULL as col. This causes a Rust panic:
thread '<unnamed>' panicked at 'not implemented: MYSQL_TYPE_NULL', /__w/...
- 654
1
vote
1
answer
50
views
Why am I getting "InvalidOperation: You cannot call a method on a null-valued expression." only when using `-Parallel`? [duplicate]
I am using Powershell version 7.4.6
And I don't understand this behaviour.
I have a regular expression
$r = New-Object System.Text.RegularExpressions.Regex "a+"
and when I run it
( 'a', 'aa'...
- 18.9k