parameter2 | Modern version of boost.parameter enabling named parameters | Development Tools library
kandi X-RAY | parameter2 Summary
kandi X-RAY | parameter2 Summary
Modern version of boost.parameter enabling named parameters without macros and better compile time. it should be noted that this lib is in a very early stage and should not be used for anything but fun. Input is however very much appreciated. In order to use named parameters the user must first define the names names. Names are defined a global constexpr variables which wrap compile time accessable parameters. Each name needs a number in order to disambiguate between two names which would otherwise have the same type. Numbers need not be in asscending order or contiguous but must be unique within a call to make_tuple. Names also take an "acceptance policy" in other words a metafunction which returns true or false depending on whether the type provided is adiquate. In the parameter2 namespace there are handy is and convertible aliases which create such a metafunction. The third and optional proameters is the default value policy. Default values are used if the users does not provide a parameter. Both compile time knoen and runtime known defaults can be passed.
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QUESTION
I am trying to automatically generate lambda functions given a list of lists of strings to generate constraints for a scipy.optimize.minimize() routine. I have a list of string pairs, which I need to pass into each lambda function constraint, as so:
ANSWER
Answered 2021-Jun-06 at 18:29See this answer to a similar question. In your case, the problem is the use of the name pair in the lambda expression. Because of Python's late-binding closures, pair will refer to the value that it has at the time the lambda is evaluated, not the value that it had when the lambda was defined. In your code, that probably means pair will always refer to the last element in list.
A possible fix:
QUESTION
I have created a custom command scan for the windows terminal. My goal is to automatically move my scans to a certain dir. I will hardcode my path but in case I want to move my scans to a different dir I have included a parameter2 (parameter1 is "start" to execute). My batch file passes the path as a string to my python script.
I know this because when I write
...ANSWER
Answered 2021-Jun-06 at 04:23You are indeed reading the whole path. But then you are stemming it, shortening to dir. Use the following
QUESTION
function App(){
const [PopulateStudent] = useState(0);
const handleGet = asnyc (e) => {
e.preventDefault();
const result = await Certificate.methids.PopulateStudent("parameter1", "parameter2", "parameter3", "parameter4").call();
console.log(result)
}
return(
Fill
);
}
export default App;
ANSWER
Answered 2021-Jun-03 at 18:47There are two main types of operations when you're interacting with smart contracts. A (read-write) transaction and a (read-only) call.
The PopulateStudent() solidity function requires a transaction, because it modifies the contract state (saves the newly created Student struct to the contract storage).
If the students property (to which the PopulateStudent() stores) is public, you can call its autogenerated getter function (autogenerated - it doesn't need to be in your contract). For example:
QUESTION
I have two setting options. The user can select either test or test1 as settings. If he selects test, the method test is executed as well as the method xytest.
I call the methods test and test1 with a mapping, which also works. However, I still need to call a second method which is xy. Is there a nicer and more elegant solution how the user can choose between test and test1 and get a different result accordingly? By that I mean isn't there a better solution to get around these if statements?
ANSWER
Answered 2021-May-26 at 16:14To get rid of the if clause, i propose to use a slightly different mapping. The mapping contains a list of functions which can be called depending on the option parameter:
QUESTION
I have a question regarding how to correctly load data from a web service into an rmarkdown file in which I am building a dashboard.
Basically, I have an rmd file in which I am building a dashboard with Flexdashboard and Shiny. I have several "r chunk" where I put maps (leaflet), tables (DT) and various plots (ggplot2 and plotly).
At the moment, I am reading the data through a web service like
www.somewebpage.com/project1/service.py?parameter1=2020¶meter2=ABC
I change the parameters using Shiny and it always returns a JSON with different data. So far I process the web service in each "r chunk", where I convert it to a data frame before displaying the maps, tables or charts.
My question is, is it possible to process only once the change of the parameters and generate only one data frame that can be read by each "r chunk" in the Rmd file?
====
Example in my Rmd file:
{r Chunk1-map, echo = FALSE}
ANSWER
Answered 2021-May-21 at 19:45I answer my question.
Just read the web service in one {r chunk} and the resulting data frame I make it reactive as I show below.
Although for some reason the user inputs have to be in the same {r chunk} (For the moment).
QUESTION
I am absolutely befuddled at the moment. Kind madams, good sirs; please do assist!
This is what I am doing:
I have a WinForms application connected to a SQL database with a varbinary(max) column for storing pictures. In my parent form (form1), I have a DataGridView (dgv1). Double-clicking on any row will bring up a new form (form2), where I can edit the row data, and where there's also a PictureBox (pb1).
If I add a picture, and then go back and refresh the DataGridView, and try to open the same row, it'll give me this error message:
If I go into the database and set the value of the varbinary(max) column back to NULL (from < Binary data >), and try to open the same row again, it'll work fine.
Let me show you my code:
...ANSWER
Answered 2021-May-20 at 17:53Well, first off imageData is going to be an empty byte[] because you're copying from the MemoryStream before you write the image data to the stream.
QUESTION
I would like to use "GROUP BY" function on the column "Product", I appreciate your support!
...ANSWER
Answered 2021-May-19 at 23:01Just use the value in the GROUP BY:
QUESTION
I'm trying to figure out how to exclude a specific string from a url link between two characters. In this case variable test. Then end on first " character.
...ANSWER
Answered 2021-May-08 at 12:37You can use
QUESTION
I have a JS file parameters.js that is like the following:
ANSWER
Answered 2021-May-06 at 20:47You are mixing your module systems.
Node.js supports CommonJS and ECMAScript modules. Browsers only support ECMAScript modules.
So use import and export (and don't use require and module.exports).
That will Just Work in the browser (keeping in mind that you have to use the URL to the module and can't use the Node.js resolution system which doesn't need file extensions).
In Node.js you need to either enable ECMAScript modules explicitly or transpile them to CommonJS with Babel.
QUESTION
i'm new to T-SQL and i got the following question:
Is it possible to set the encryption per parameter? Something like this: (pseudo code)
...ANSWER
Answered 2021-May-06 at 08:56Following OP's explanation that they are looking for a way to protect the T-SQL in their SPs when deployed in client environments, the problem can be clarified.
There is no way to control whether a SP is encrypted using a parameter to the SP. This is because the SP is encrypted when it is created not when it is executed.
A simple approach that allows SPs to be altered in development but protected in production is to simply create the SPs without encryption in development, and with encrytpion in production.
For example, in your development environment:
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