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git: difference between “branchname” and “refs/heads/branchname”
...
See, branchName needs to be fully resolved before GIT can actually identify it. The fully resolved name will be refs/heads/branchName.
One of the famous commandsgit checkout branchName actually automatically resolves it fully to identify where you want to checkout. Note that it does it aut...
Order of member constructor and destructor calls
...ed. The reason is that one object may use another, thus depend on it. Consider:
struct A { };
struct B {
A &a;
B(A& a) : a(a) { }
};
int main() {
A a;
B b(a);
}
If a were to destruct before b then b would hold an invalid member reference. By destructing the objects in the rev...
MySQL CONCAT returns NULL if any field contain NULL
...
For those wonder, as I did, what the COALESCE function does: it returns the first non-NULL value parameter passed to it (or NULL if all parameters are NULL). By passing an empty string as the second parameter, you are guaranteeing it will not return...
jquery $(window).width() and $(window).height() return different values when viewport has not been r
I am writing a site using jquery that repeatedly calls $(window).width() and $(window).height() to position and size elements based on the viewport size.
...
How can I split a string into segments of n characters?
... answered Jun 7 '11 at 0:30
David TangDavid Tang
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...
How to increase scrollback buffer size in tmux?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
Can I publish a private NuGet package?
...u have to share the folder with everyone, and anyone with access could (accidently or not) temper with its content. A better way (yet simple way) is to create your own server using NuGet.Server and to host is in IIS or Azure. You will then be able to push packages using an API key and anyone can sub...
Is there “Break on Exception” in IntelliJ?
...
In IntelliJ IDEA 14 go to:
Run -> View Breakpoints -> Check "Java Exceptions Breakpoints" -> Uncheck "Caught Exceptions"
If you do not uncheck Caught Exceptions the execution will be stopped every time the Java Framework throw...
Ensuring json keys are lowercase in .NET
...s LowercaseContractResolver : DefaultContractResolver
{
protected override string ResolvePropertyName(string propertyName)
{
return propertyName.ToLower();
}
}
Usage:
var settings = new JsonSerializerSettings();
settings.ContractResolver = new LowercaseContractResolver();
var ...
postgresql - replace all instances of a string within text field
...to text)
and returns the modified text. You can also check out this sql fiddle.
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