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What do the parentheses around a function name mean?
In one of my project source files, I found this C function definition:
3 Answers
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Array extension to remove object by value
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As of Swift 2, this can be achieved with a protocol extension method.
removeObject() is defined as a method on all types conforming
to RangeReplaceableCollectionType (in particular on Array) if
the elements of the collection are Equatable:
e...
How do I get the full path to a Perl script that is executing?
...to determine the full path and filename of the script during execution. I discovered that depending on how you call the script $0 varies and sometimes contains the fullpath+filename and sometimes just filename . Because the working directory can vary as well I can't think of a way to reliably g...
What is the difference between “#!/usr/bin/env bash” and “#!/usr/bin/bash”?
...has the benefit of looking for whatever the default version of the program is in your current environment.
This way, you don't have to look for it in a specific place on the system, as those paths may be in different locations on different systems. As long as it's in your path, it will find it.
O...
Validate phone number with JavaScript
I found this code in some website, and it works perfectly. It validates that the phone number is in one of these formats:
(123) 456-7890 or 123-456-7890
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System.Threading.Timer in C# it seems to be not working. It runs very fast every 3 second
...ld run a OnCallBack method and gets inactive while a OnCallBack method is running. Once a OnCallBack method finishes, it (a OnCallBack ) restarts a timer.
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Why use 'virtual' for class properties in Entity Framework model definitions?
...keyword have in Entity Framework 4.1 POCO Code First? for a more thorough discussion.
Edit to clarify "create a proxy around":
By "create a proxy around" I'm referring specifically to what the Entity Framework does. The Entity Framework requires your navigation properties to be marked as virtual so...
How to increase request timeout in IIS?
How to increase request timeout in IIS 7.0? The same is done under application tab in ASP configuration settngs in IIS 6.0. I am not able to find the asp.net configuration section in IIS 7.0
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When to use std::begin and std::end instead of container specific versions [duplicate]
...to begin( C& c ) -> decltype(c.begin());
You see that all it does is reference the begin() anyway. I suppose a decent compiler will make the difference nil, so I guess it comes down to preference. Personally, I'd use cont.begin() and cont.end() just so that I wouldn't have to explain it t...
How to declare a global variable in JavaScript?
... should be avoided) always declare them explicitly:
window.globalVar = "This is global!";
While it is possible to define a global variable by just omitting var (assuming there is no local variable of the same name), doing so generates an implicit global, which is a bad thing to do and would gener...