Hi I have a doubt to use the like parameter in the numpy.arange() function.
numpy.arange([start, ]stop, [step, ]dtype=None, *, like=None)
Here i'm not sure how to use the 'like' parameter in the arange funtion.
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I want to perform logic operation to check if a string or a set of numbers is contained in a variable. In the same manner simply write:
a + b
a * b
a = b
Is there a way to write something like:
a ⊆ b
I expect te retrieve a boolean result out of it, stating true or false to determine if it is contained in the other variable. I am writing a comparison tool and would like to simplify it to use a math or logic operator instead of a method like InStr().
You can use LINQ for this:
Dim bContainsAllA As Boolean = Not a.Except(b).Any()
You can't create new operators... Your options is to use an existing operator, create a method or do an extension method.
I wouldn't recommend using InStr since this is old VB. There are good methods in the String class. Or use LINQ.
Is there any way to call a function or a variable within a realm query such as this? The _getDate() function can't seem to be called within the filtered
realm.objects('Round').filtered('id !== {_getDate()}')
Can you try the following code? Use string template syntax (Backtick instead quote and ${_getDate()}.) Also, Realm's query syntax is not same as JavaScript. It doesn't have !== operator. Use !=.
realm.objects('Round').filtered(`id != ${_getDate()}`)
I have a function that I created in SQL, and I need to test to make sure that its functioning properly. I know I can use something like...
SELECT * FROM dbo.TestFunction
to execute it, but how do I pass a parameter to the function?
Just call it with parameter as follows:
SELECT * FROM dbo.TestFunction (your_parameters_separated_by_commas)
If it's one parameter only, you call it as dbo.TestFunction(#param1). If it has multiple parameters, change to dbo.TestFunction(#param1,#param2...).
I'm using VB.Net and I would like to know how to get the selected checkboxes in a checkboxlist using linq and lambda syntax (not query syntax, repeat NO query syntax).
I tried this but it's definitely not right.
cblRequired.Items.OfType(Of ListItem).Where(Function (i As ListItem ) i.Selected End Function)
I believe that the only thing wrong with your code is that you should not have the End Function, since it's a single-line lambda expression. This should work:
cblRequired.Items.OfType(Of ListItem).Where(Function(i As ListItem) i.Selected)
Technically, you don't need to specify the type of i, since it will automatically infer the type:
cblRequired.Items.OfType(Of ListItem).Where(Function(i) i.Selected)
If you want it to be a multi-line lamba expression, that would look like this:
cblRequired.Items.OfType(Of ListItem).Where(Function(i)
Return i.Selected
End Function)
i have a populated list:
def someList=... (string values)
and I want to pass this into a SQL statement to restrict which columns the query selects.
db.rows("select ${someList} from arch_application")
However, I get this error when I try to do so:
There is a ? parameter in the select list. This is not allowed.
Anyone have an ideas? Thanks!
When you pass a GString to Sql.rows, it gets parsed differently than normal in groovy. In particular, it creates a PreparedStatement with replaceable parameters for ${} substitutions. In your case this is probably not what you want. Try forcing the GString to a Java string:
db.rows("select ${someList.join(',')} from arch_application" as String)