Questions tagged [default-values]
18 questions
7
votes
5 answers
Should an optional boolean function argument rather default to true or false?
In many cases I can formulate some boolean parameter equally well positively as negatively, e.g. isOn or isOff. Which one should I pick then, in case I want the argument to have a default value? Is there a convention that an optional boolean…
DaveFar
- 1,406
- 12
- 19
4
votes
5 answers
The Default State of Unused Memory
In an embedded device, during the initializing of memory locations, is there any convention that are being practiced.
I mean, say setting every byte to zero or 0xFF or any other value.
Shamim Hafiz - MSFT
- 4,123
- 7
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- 46
4
votes
3 answers
Is it necessary for a boolean to be "false" by default?
For example, to store whether sound is on, I have a boolean originally named "isSoundOn":
private boolean isSoundOn=true;
however, the default value of boolean is false, but I want my application to turn on the sound at start. My question is,…
ocomfd
- 5,652
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4
votes
1 answer
Assigning default values from environment variable in Node.js
When attempting to set default values for parameters that may exist in environment variables in JavaScript, I often see this pattern:
var lag;
try {
lag = process.env.THROTTLE_LAG;
}
catch ( e ) {
lag = 100;
}
I don't like it because,…
msanford
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4
votes
6 answers
Is it bad practice to resolve null arguments to default static variables?
First, let me show you an example (written in ActionScript 3.0):
class GameObject {
public static function MakeFromName( pName:String,
pAtlas:TextureAtlas = null,
…
chamberlainpi
- 173
- 7
3
votes
2 answers
Should default configuration for deployed services be set as per production usage?
Today, I and my colleague had a difference of opinion regarding the usage of default values in software configuration. We both agreed that for a consumer software, the default configuration should be determined by the most common usage and user…
Mukul Gupta
- 149
- 4
3
votes
1 answer
Miroservices default value for Fallback scenarios
Default values are often suggested to be part of failover mechanism for microservices. At a high level, for any services (say microservices here) the nature of the operation can be broadly classified as Read Or Write.
Having default values for…
Divs
- 187
- 7
3
votes
3 answers
Can a default value for a business process be set in the database column definition?
The business team in my company has come up with a new field to add to one of our entities. For new instances of this entity, it'll be calculated dynamically, but for previously existing instances, we need to set up a default value of, at the…
user3748908
- 1,607
- 2
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3
votes
1 answer
OOP best practice: Optional referenced-type parameter
I know in C#, by default, referenced type variables are passed by reference to a method. I have a function which sometimes I just need its return value and sometimes both return value and the changes on the input object are needed outside of the…
Ahmad
- 1,806
- 3
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2
votes
3 answers
Checking at javascript level vs checking in PHP?
Setup:
We've got a form with default text values present within the text box itself which "goes away" when I click on them and enter a value (not if I dont enter a value). Currently the 'default' value or the user inputted value gets POSTed to the…
siliconpi
- 205
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- 4
2
votes
1 answer
Does automatic returning affect performance?
There's a bunch of languages that automatically return the last value in a function (mostly functional) like Ruby, Haskell, Lisp, etc.
Does this feature (or what do you call it) affect the performance of these languages?
UncleLaz
- 129
- 1
1
vote
4 answers
What should be the last entry in a switch/case statement?
When writing a switch statement that only ever has to deal with a known set of values (imagine an implicit enumeration), I find myself wondering what should be the last entry in the construct. I'm always considering the same 3 approaches, but I'd…
Dev-iL
- 233
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1
vote
2 answers
Design Pattern: Algorithm varies according to the input arguments
I will give a simple example to help you understand my question. Suppose we have a rectangle and a Utility class with a method that creates a buffer arround a shape.
The .createBuffer method has required and optional arguments:
required:…
jorgeb
- 11
- 2
0
votes
2 answers
Should default values be explicitly stated in configuration files for libraries or frameworks?
In one of the projects I work for, we have just added karma to run unit tests.
When reviewing the MR of a coworker, I noticed the karma.conf.js (the configuration file) has 120 lines, which seems to be a lot for me.
While reading each configuration,…
Gonzalo.-
- 161
- 6
0
votes
1 answer
Is there a normal way to program a CLI script that overrides default parameters in python
If I've got a script that uses a config file (or defaults to a generic config file) that calls another module which needs the config file passed to it as a parameter should I always
File 1 (the script): /bin/runner
include doer.py
... initializing…
Peter Turner
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