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Usage of protocols as array types and function parameters in swift
...a variant of a problem with protocols in Swift for which no good solution exists yet.
See also Extending Array to check if it is sorted in Swift?, it contains suggestions on how to work around it that may be suitable for your specific problem (your question is very generic, maybe you can find a wor...
Detect if Visual C++ Redistributable for Visual Studio 2012 is installed
...reg locations may be OS-dependent. I collected this info from a Windows 10 x64 box. I'm just going to go ahead and dump all of these redist versions and the reg keys I search for to detect installation.:
Visual C++ 2005
Microsoft Visual C++ 2005 Redistributable (x64)
Registry Key: HKLM\SOFTWARE\...
Programmatically Determine a Duration of a Locked Workstation?
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Tested 100% on Windows 7 x64 and Windows 10 x64.
– Contango
Jan 5 '17 at 17:15
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'Missing recommended icon file - The bundle does not contain an app icon for iPhone / iPod Touch of
...
If you get an icon error when submitting an application from Xcode9, or if you cannot see app icon on your simulator as well as a device, just update your cocoapods to the latest version in your project. That issue is a bug in Xcode9 with cocoapods.
There's a new guideline for iPhon...
The difference between bracket [ ] and double bracket [[ ]] for accessing the elements of a list or
...ypes of questions:
http://cran.r-project.org/doc/manuals/R-lang.html#Indexing
R has three basic indexing operators, with syntax displayed by the following examples
x[i]
x[i, j]
x[[i]]
x[[i, j]]
x$a
x$"a"
For vectors and matrices the [[ forms are rarely used, althoug...
Map function in MATLAB?
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The short answer: the built-in function arrayfun does exactly what your map function does for numeric arrays:
>> y = arrayfun(@(x) x^2, 1:10)
y =
1 4 9 16 25 36 49 64 81 100
There are two other built-in functions that behave similarly: c...
Fastest way to determine if an integer is between two integers (inclusive) with known sets of values
Is there a faster way than x >= start && x <= end in C or C++ to test if an integer is between two integers?
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LINQ: Select an object and change some properties without creating a new object
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I'm not sure what the query syntax is. But here is the expanded LINQ expression example.
var query = someList.Select(x => { x.SomeProp = "foo"; return x; })
What this does is use an anonymous method vs and expression. This allows you to use several s...
Remove all occurrences of char from string
... CharSequence arguments (eg, String) rather than char:
str = str.replace("X", "");
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Load multiple packages at once
... -- but only if you specify the character.only argument to be TRUE. Quick example:
lapply(x, require, character.only = TRUE)
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