Function is a block of code which performs a specific task.
2
votes
2answers
133 views
Name of the function f(x) = a*(x^b) [closed]
I am working on a C++ library, and I would like to make good decisions on the naming of function. In several places of my library, I need the use of a function which is a multiplication/exponentiation ...
1
vote
1answer
57 views
Helper functions - well defined inputs or well defined outputs?
Problem
In Codeigniter (PHP framework), I am trying to create a helper function that will inject an ActiveRecord (for MySQL) command into a chain of existing ActiveRecord calls. The reasoning for ...
1
vote
2answers
175 views
Using Functions for Never-Repeated Code [duplicate]
What are some best practices for using functions to break up large blocks of code into discrete chunks of logic when those functions are only ever going to be used once within the lifetime of a ...
1
vote
0answers
27 views
How to apply a formula for removing data noise in R? [migrated]
I am working on NGSim Traffic data, having 18 columns and 1180598 rows in a text file. I want to smooth the position data, in the column 'Local Y'. I know there are built-in functions for data ...
8
votes
5answers
525 views
Multiple arguments in function call vs single array
I have a function that takes in a set of parameters, then applies to them as conditions to an SQL query. However, while I favored a single argument array containing the conditions themselves:
...
31
votes
6answers
2k views
Why is “tight coupling between functions and data” bad?
I found this quote in "The Joy of Clojure" on p. 32, but someone said the same thing to me over dinner last week and I've heard it other places as well:
[A] downside to object-oriented programming ...
3
votes
3answers
390 views
Good Procedure or Function Design
This is in reference to the question posted here. As I would judge it, the question there should be closed simply because it seems to ask why the Borland developers made one thing a function and ...
8
votes
2answers
461 views
What is an example of a continuation not implemented as a procedure?
An interesting discussion about the distinction between callbacks and continuations over on SO has prompted this question. By definition, a continuation is an abstract representation of the logic ...
2
votes
2answers
191 views
Should I put utility methods inside a class?
I have been working on a library which contains a large set of functions. For the sake of simplicity, I am going to use just one set as an example.
I am not sure which is the better way, in terms of ...
26
votes
4answers
1k views
How do programming languages define functions?
How do programming languages define and save functions/methods? I am creating an interpreted programming language in Ruby, and I am trying to figure out how to implement function declaration.
My ...
16
votes
11answers
970 views
Why are we supposed to use short functions to sectionalize our code? [duplicate]
I've seen an increasing trend in the programming world saying that it is good practice to separate code blocks into their own functions. Obviously, if that code block is reusable, you should do that. ...
0
votes
1answer
56 views
Good practice to use namespace or prefix to indicate what file function is from? [duplicate]
For example, I have the function generate_salt() in encryption.file but the person may not know where generate_salt() is from. Using a namespace like encryption::generate_salt(), or ...
2
votes
3answers
106 views
Non-trivial get function, should it be named differently
For example I have this code.
class Command {
var $responseFactory;
var $service;
/**
* Returns the class name of the responseFactory if it is set
* or the default class name ...
-1
votes
5answers
344 views
Named output parameters vs return values
Which code is better:
// C++
void handle_message(...some input parameters..., bool& wasHandled)
void set_some_value(int newValue, int* oldValue = nullptr)
// C#
void handle_message(...some ...
41
votes
4answers
2k views
How do functional languages handle random numbers?
What I mean about that is that in nearly every tutorial I've read about functional languages, is that one of the great things about functions, is that if you call a function with the same parameters ...
