Questions tagged [types]
Types, and type systems, are used to enforce levels of abstraction in programs.
types
29,002
questions
1
vote
0
answers
21
views
Unexpected behavior when combining mapped type created from Union that is used within conditional type [duplicate]
I came across some unexpected behavior when trying to expand mapped type I created from an union of object types, when trying to use this type within conditional type: Playground
export type ...
- 7,641
1
vote
1
answer
19
views
How to Properly Implement Role-Based Authorization in React Using Context API and React Query?
I am trying to work on a React application where I want to implement role-based authorization.
My goal is to fetch user roles from an API and store them in context so they can be accessed throughout ...
- 43
0
votes
1
answer
108
views
How to parameter pack pairs of types?
Here's an example usage of a parameter pack:
template <typename... T>
bool foo(A x) {
return (baz<T>(x) || ...);
}
I'd like to do something similar, but with pairs of types. Here's an ...
- 1,183
-3
votes
0
answers
85
views
c++ how to convert std::string to std::map? [closed]
i want to know how i can convert a std::string to std::map!
map<string, string>New_Map = {{key1, value1}, {key2, value2}, {key3, value3}};
#include <sstream>
#include <iostream>
#...
1
vote
1
answer
57
views
C# generic method detect if T is array and then index into the array
I'm trying to write a Dbg debug function that will print out some debug info about the given parameter and then return it. I would like arrays to be printed as the list of elements, and scalars to ...
- 768
-2
votes
2
answers
87
views
Custom integer-like datatype with support for static casts without warnings
I'm writing my own little utility library, and I've opted to do something which I don't really see often (and there might be a reason) - I'm trying to implement a 'perfect' wrapper around C++ integer ...
- 57
-3
votes
2
answers
49
views
Pass Function with Struct Parameter to a Struct in Go [duplicate]
Taking this example struct (my side):
type Route struct {
// other fields
Handler func(any)
}
This is what the example user of my code would look like:
type HelloWorldInput struct {
...
- 348
0
votes
0
answers
26
views
exported variables always return undefined in discord.JS V14
in events/messageCache.ts:
import { Events, Message } from 'discord.js';
export interface MessageCacheEntery {
authorID: string;
deleted: boolean;
message: string;
timestamp: number;
}...
- 11
1
vote
1
answer
31
views
Extract Generic Interface or Type keys as an Array [duplicate]
I want to know if it's possible to get a generic interface or type and get it's properties like an array of objects, like this:
interface UserData {
email: string
}
keys = extractKeys<UserData&...
- 23
-2
votes
0
answers
38
views
Returning an array of raw type but instead of an array of parameterized type specified at the header
protected Collection<Node> createBucket() {
return new LinkedList<>();
}
/**
* Returns a table to back our hash table. As per the comment
* above, this table can be an array of ...
- 1
0
votes
0
answers
28
views
Joda-time type mapping in Hibernate ORM 6
I'm new to Java and I am trying to migrate from Hibernate 5 to 6. My application uses joda-time for the timestamp data type. It is using both annotation and hibernate mapping files.
Following is a ...
0
votes
1
answer
47
views
Dynamically set the Property name to be the name of the Type(typeof(T).Name)
var appsettings = JsonConvert.DeserializeObject<AppSettings<PersonModel>>(configData);
class AppSettings<T>
{
[JsonProperty(PropertyName = typeof(T).Name)]
public T ...
- 15
2
votes
1
answer
39
views
Casting RDD to a different type (from float64 to double)
I have a code like below, which uses pyspark.
test_truth_value = RDD.
test_predictor_rdd = RDD.
valuesAndPred = test_truth_value.zip(lasso_model.predict(test_predictor_rdd)).map(lambda x: ((x[0]), (x[...
- 145
1
vote
0
answers
22
views
When using WC_Product_Variable, it creates a simple product [duplicate]
I am trying to progmatticly create a Variable Product in WooCommerce like so:
$currentProduct = new WC_Product_Variable();
$currentProduct->set_name( $product['Title'] );
...
0
votes
2
answers
46
views
TypeScript Type narrowing not working for collection schema
I'm working on an Astro + TypeScript project where I have few data collections with specific schemas.
I'm using the Zod library to define and structure each data collection, which in a simplified way ...
