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F# changes to OCaml [closed]
F# is derived from OCaml, but what major items are missing or added? Specifically I'm curious as to whether the resources available for learning OCaml are also useful to someone who wants to learn F#.
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Why rename synthesized properties in iOS with leading underscores? [duplicate]
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@end
People would prefix their instance variables to differentiate them from their properties (even though Apple doesn't want you to use underscores, but that's a different matter). You synthesize the property to point at the instance variable. But the point is, _qux is an instance variable and s...
Best practices when running Node.js with port 80 (Ubuntu / Linode) [closed]
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This allows port 80/443 to remain protected, while still preventing you from serving requests as root:
function drop_root() {
process.setgid('nobody');
process.setuid('nobody');
}
A full working example using the above function:
var process = require('process');
var http = require('ht...
Specify custom Date format for colClasses argument in read.table/read.csv
...ion as part of the colClasses.
Try:
setAs("character","myDate", function(from) as.Date(from, format="%d/%m/%Y") )
tmp <- c("1, 15/08/2008", "2, 23/05/2010")
con <- textConnection(tmp)
tmp2 <- read.csv(con, colClasses=c('numeric','myDate'), header=FALSE)
str(tmp2)
Then modify if needed...
Loader lock error
...on of Mixed Assemblies.
To ensure your mixed mode assembly can be loaded from a native executable, the only thing you need to check is that DllMain method is declared as native code. #pragma unmanaged could help here:
#pragma unmanaged
BOOL APIENTRY DllMain(HMODULE hModule,
DWORD ul_reason_...
Python Regex - How to Get Positions and Values of Matches
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@hi-angel yep, see my answer below from last year that does just that
– StevenWernerCS
Jul 16 at 1:03
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python location on mac osx
...ypical for a python.org installed Python instance or it could be one built from source.
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How can two strings be concatenated?
...("GAD", "AB")
library(stringr)
str_c(tmp, collapse = ",")
# [1] "GAD,AB"
From its documentation file description, it fits this problem nicely.
To understand how str_c works, you need to imagine that you are building up a matrix of strings. Each input argument forms a column, and is expanded to...
How does the NSAutoreleasePool autorelease pool work?
... use autorelease pools directly. Instead, you use @autoreleasepool blocks. From developer.apple.com/library/mac/#documentation/Cocoa/Reference/…
– Md Mahbubur Rahman
Mar 28 '13 at 6:11
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Static constant string (class member)
...lass definition) is only allowed with integral and enum types.
Starting from C++17 you have another option, which is quite similar to your original declaration: inline variables
// In a header file (if it is in a header file in your case)
class A {
private:
inline static const string ...