I kind of posted a similar question a couple of days ago but that was more geared towards any *.Designer.cs file. This question is geared towards declaration and initialization of global variables within a class. To my knowledge, it's almost common practice (aside from the *.Designer.cs files it seems) to place all global variables at ...
I know and understand that global variables and magic numbers are things to avoid when programming, particularly as the amount of code in your project grows. I however can't think of a good way to go about avoiding both. Say I have a pre-determined variable representing the screen width, and the value is needed in multiple files. I coul...
Hi all, This may seem like a dumb topic, but I'm trying to learn some good coding practices. I'm making a windows.forms application and I have reached a point where my partial Form class has 7 global variables (and their corresponding properties) declared and used - to name a few: one to determine if the app is registered, a Settings o...
I have a legacy C Linux application that I need to reuse . This application uses a lot of global variables. I want to reuse this application's main method and invoke that in a loop. I have found that when I call the main method( renamed to callableMain) in a loop , the application behavior is not consistent as the values of global varia...
I want to control global variables (or globally scoped variables) in a way that they are set only once in program initialization code, and lock them after that. I use UPPER_CASE_VARIABLES for global variables, but I want to have a sure way not to change the variable anyway. Does python provide that (or similar) feature? How do you c...
Hello, I have a global JSON variable where I store some parameters and then each time I run the function I want to be able to modify them but just locally inside that function. So every time I run the function I want a fresh copy of the global variable inside the local one. The problem is that I copy the global variable to a local one...
I have a class that I am using all over the place in my code. It contains settings and other core functionality. Here's what I'm doing right now to use the class. $settings = new Settings(); $settings->loadSettings(); Then, when I need to the code in some random function in another class, I do something like this: function abc() { ...
In my experience, most JS functions, constructor functions, or module-pattern functions, are declared as globals or are bound to a global namespace object. In any case, these identifiers are globally accessible. From any line of code in your system you can have: mod1 = somepackage.SomeModule(); // couple to me! Here's a quick JS exa...
So I have just started learning objective c having a little Java experience and this site has been really helpful for answering loads of my questions, but I've hit an issue I can't quite fathom. Theres a fair amount to be read on the topic but I can't quite find where I've gone wrong. So I read this: Objective C does not support cl...
var foo = 'hello'; var myfunc = function() { console.log(foo); var foo = foo || 'world'; console.log(foo); } myfunc(); why is the first foo logged to be 'undefined' ? ...
Hi I want to make a global variable in Qt. So I wrote a singleton class. But I am getting the following errors :: error: symbol(s) not found, :: error: collect2: ld returned 1 exit status I am using the following code : CityBookGlobalVariables.h: class CityBookGlobalVariables { private: CityBookGlobalVariables(); CityBookGlo...
I tried to use acast from reshape2 within a self written function, but had the problem that acast did not find the data I send to it. Here is my data: library("reshape2") x <- data.frame(1:3, rnorm(3), rnorm(3), rnorm(3)) colnames(x) <- c("id", "var1", "var2", "var3") y <-melt(x, id = "id", measure = c("var1", "var2", "var3")) y ...
I have a package with two modules in it. One is the __init__ file, and the other is a separate part of the package. If I try from mypackage import separatepart, the code in the __init__ module is run, which will run unneeded code, slowing down the importing by a lot. The code in separate part won't cause any errors, and so users should b...
I have a VB application, that uses some global variables to store data that is required by multiple forms and modules, this works fine. However if a user opens up another workbook, running the same VBA application, then they end up accessing (and changing) the same public variables. How can I have workbook level global variables, or if ...
I'm doing a style.php CSS file so I can use some dynamic variables in the CSS within a Wordpress installation: <?php header("Content-type: text/css"); ?> and so on. How can I access a global variable from within the style.php file or pass a variable to it? The code I'm trying to get to work within the CSS is like $maincolor = $cap-...
Hi, My website uses a web user control. The properties for the user control will be set will be common for a set of my users. e.g. if I have 20 users accessing my website, 5 of them may be using the user control with id = 1 , 4 using the user control with id =2. I have a property associated with each user control which I would like to b...
This is another variation of an old theme: The initialization order of static objects in different translation units is not defined. Below is a stripped-down example of my particular szenario. The classes G and F are non-POD types. F depends on G is the sense that to construct an instance of F you need some number of instances of G. (Fo...
I am working with some C++ code that has a timer and the timer runs this: char buf[1024]; ZeroMemory(&buf, sizeof(buf)); somefunction(buf); // this put stuff into buf otherfunction(buf); // this do stuff with buf somefunction() does a web request and InternetReadFile() puts the data in "buf" But I need to be able to read the previous...
I've known about haxe for a while, but never really played with it until yesterday. Being curious, I decided to port showdown.js, a javascript port of markdown.pl, to haxe. This was pretty straightforward, and the javascript it generates seems to run fine (edit: If you want to see it in action, check it out here). However, I noticed tha...
Problem... Poorly-coded scripts exist which need to be included on a web page. These scripts pollute the global scope by doing things like: Assigning values to undeclared identifiers Adding properties to built-in constructor functions (like Object and Array) and their prototypes Other nasty stuff. Solution? I want to include t...