optional-parameters Questions

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I am trying to build a "type", for the Timecode convention used in Film/Animation. I want to accommodate use cases where a user may want to initialise the object with a Timecode string go...
Recusancy asked 5/9, 2023 at 19:30

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// opt_options is optional function foo(a, b, opt_options) { // opt_c, opt_d, and opt_e are read from 'opt_options', only c and d have defaults var opt_c = 'default_for_c'; var opt_d = 'default_...
Editorial asked 7/3, 2012 at 13:31

8

As a simple example, take a class Ellipse that can return its properties such as area A, circumference C, major/minor axis a/b, eccentricity eetc. In order to get that, one obviously has to provide...
Washwoman asked 19/2, 2015 at 11:7

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This code is not valid: private void Foo(string optionalString = string.Empty) { // do foo. } But this code is: private void Foo(string optionalString = "") { // do foo. } Why? Because stri...
Revenant asked 31/8, 2010 at 5:41

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I am developing a framework, where in I am a calling stored procedure with dynamically created parameters. I am building parameter collection at the runtime. The problem occurs when I am passing ...

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C#, for example, allows using named parameters like so: calculateBMI(70, height: 175); I find this quite useful. How can I get a similar effect in JavaScript? I've tried doing things like myFuncti...

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I have a Python function which takes several arguments. Some of these arguments could be omitted in some scenarios. def some_function (self, a, b, c, d = None, e = None, f = None, g = None, h = No...
Athodyd asked 2/3, 2012 at 20:30

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I am trying to write a VBA sub that allows optional parameters with default values. I tried the sample code from Microsoft Docs - Optional Parameters (Visual Basic) but it leads to the sub not show...

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Both of these generate an error saying they must be a compile-time constant: void Foo(TimeSpan span = TimeSpan.FromSeconds(2.0)) void Foo(TimeSpan span = new TimeSpan(2000)) First of all, can so...
Epigrammatist asked 30/1, 2010 at 17:50

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I created a formula to sort positive values. =SORT(FILTER(A2:A, A2:A>0),1,1) And turnd it to a named function with this formula definition, and named it SORT_POSITIVE =SORT(FILTER(range, range&...

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Edit: whilst back 2013 Jon Skeet's accepted answer was 100% correct. For anyone coming across this question now (2023) I would direct you to check Sergey.quixoticaxis.Ivanov's answer below as from ...
Piotr asked 10/1, 2013 at 1:12

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Is it considered a bad practice to use optional parameters when using dependency injection frameworks with Constructor injection? Example: public class ProductsController { public ProductsContro...
Tohubohu asked 20/4, 2012 at 20:31

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[HttpGet] [Route("students")] [SwaggerOperation(Tags = new[] { "Student" })] [SwaggerResponse(HttpStatusCode.OK, Type = typeof(ResponseModel<IList<Student>>))] [SwaggerResponseExample(H...

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I'm having a problem with optional function parameter in C++ What I'm trying to do is to write function with optional parameter which is passed by reference, so that I can use it in two ways (1) an...
Deathwatch asked 12/5, 2010 at 5:49

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Is it possible to point to a specific settings file in order to override the default settings.xml being used by maven for a single command? Example: mvn clean install -Dparam # -> pass specific...

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I would like to write a wrapper method for a webservice, the service accepts 2 mandatory and 3 optional parameters. To have a shorter example, I would like to get the following code working def...
Sturdy asked 9/8, 2013 at 14:28

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I have this model: class Text(BaseModel): id: str text: str = None class TextsRequest(BaseModel): data: list[Text] n_processes: Union[int, None] So I want to be able to take requests like: {...
Yaupon asked 1/8, 2022 at 19:58

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I don't understand optional query parameters in FastAPI. How is it different from default query parameters with a default value of None? What is the difference between arg1 and arg2 in the example ...
Calycle asked 25/2, 2022 at 15:33

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I got this list of coins that i want to filter with that 3 optional parameters(Currency, quantity and year) How can I set parameters in JPQL as optional? I dont want to do 9 "if else" for checking...
Marhtamari asked 28/5, 2018 at 15:7

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I have the following code: from fastapi import FastAPI from pydantic import BaseModel app = FastAPI() class Request(BaseModel): user_name: str age: int # other unknown arguments @app.post(&...
Hepsiba asked 28/4, 2023 at 9:44

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The API should serve an endpoint where a user can either provide a guid, a path or a code. This is what the url scheme should look like: api/locations?code={str}&guid={str}&path={str} The ...
Alaniz asked 18/4, 2023 at 11:51

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I use the repository pattern. My repository methods receive an optional IClientSessionHandle parameter which defaults to null. A part of each method prepares the filters/updates/etc., then a call i...
Braw asked 14/1, 2020 at 21:29

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Most sites say callee as a property of Function.arguments is deprecated. But some sites go further and say the whole of Functions.argument is deprecated E.g. https://web.archive.org/web/20130313045...
Derzon asked 14/11, 2011 at 11:59

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OK I totally forgot how to skip arguments in PHP. Lets say I have: function getData($name, $limit = '50', $page = '1') { ... } How would I call this function so that the middle parameter...

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I understand optional parameters, and I quite like them, but I'd just like to know a bit more about using them with an inherited interface. Exhibit A interface IMyInterface { string Get(); stri...
Symbology asked 11/11, 2011 at 13:25

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