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How to update npm
...nager download page https://nodejs.org/en/download/
For historical understanding: Chis Lea was maintaining his PPA but now joined forces with nodesource.
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What do two question marks together mean in C#?
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It's the null coalescing operator, and quite like the ternary (immediate-if) operator. See also ?? Operator - MSDN.
FormsAuth = formsAuth ?? new FormsAuthenticationWrapper();
expands to:
FormsAuth = formsAuth != null ? formsAuth : new FormsAuthenticationWr...
How to convert float to varchar in SQL Server
I have a float column with numbers of different length and I'm trying to convert them to varchar.
15 Answers
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Using Html.ActionLink to call action on different controller
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Can you explain why this particular overload works and korki's does not? How does setting htmlAttributes to null affect the routing of the link?
– Derek Hunziker
Aug 16 '10 at 16:26
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Rails Model find where not equal
...is is the only refactor you are going to make, it is not worth using a gem and I would just stick with what you got. Squeel is useful in situations where you have many complex queries interacting with Ruby code.
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Replacement for deprecated -sizeWithFont:constrainedToSize:lineBreakMode: in iOS 7?
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And where do you mention NSLineBreakByWordWrapping? Wherre did it go?
– user4951
Nov 4 '13 at 9:57
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Handling applicationDidBecomeActive - “How can a view controller respond to the app becoming Active?
...egister it as an observer for the UIApplicationDidBecomeActiveNotification and specify which method that you want to call when that notification gets sent to your application.
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(someMeth...
How to convert SecureString to System.String?
...you can access the raw data using Marshal.ReadInt16(IntPtr, Int32):
void HandleSecureString(SecureString value) {
IntPtr valuePtr = IntPtr.Zero;
try {
valuePtr = Marshal.SecureStringToGlobalAllocUnicode(value);
for (int i=0; i < value.Length; i++) {
short unicodeChar = Marshal....
How do I find the stack trace in Visual Studio?
... would be nice for it to show the callers of the objects that throws an unhandled exception. Is there a hidden option to make it useful? Perhaps you can expand on your answer to provide examples.
– James
Jan 16 '15 at 16:43
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Return a `struct` from a function in C
...ame as any built-in type for purposes of parameter passing, return values, and assignment.
Here's a simple demonstration program that does all three - passes a structure as a parameter, returns a structure from a function, and uses structures in assignment statements:
#include <stdio.h>
str...