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diff current working copy of a file with another branch's committed copy
...ranch name, so you want this:
git diff master -- foo
Which is from this form of git-diff (see the git-diff manpage)
git diff [--options] <commit> [--] [<path>...]
This form is to view the changes you have in your working tree
relative to the named <commit>. You...
Using ping in c#
...
using System.Net.NetworkInformation;
public static bool PingHost(string nameOrAddress)
{
bool pingable = false;
Ping pinger = null;
try
{
pinger = new Ping();
PingReply reply = pinger.Send(nameOrAddress);
...
What are copy elision and return value optimization?
... or pass-by-value feasible in practice (restrictions apply).
It's the only form of optimization that elides (ha!) the as-if rule - copy elision can be applied even if copying/moving the object has side-effects.
The following example taken from Wikipedia:
struct C {
C() {}
C(const C&) { std::...
Chrome Dev Tools: How to trace network for a link that opens a new tab?
...ad the filter type:URL_REQUEST, but it does not seem to contain the same information as the Network tab. For instance, it seems to strip cookie data for both requests and responses.
– Patrick M
Jul 22 '14 at 17:54
...
When to use valueChangeListener or f:ajax listener?
...
The valueChangeListener will only be invoked when the form is submitted and the submitted value is different from the initial value. It's thus not invoked when only the HTML DOM change event is fired. If you would like to submit the form during the HTML DOM change event, then yo...
Compile time string hashing
... 5381;
}
This does seem to follow the basic rules in §7.1.5/3:
The form is: "return expression;"
Its only parameter is a pointer, which is a scalar type, and therefore a literal type.
Its return is unsigned int, which is also scalar (and therefore literal).
There is no implicit conversion to...
What's the effect of adding 'return false' to a click event listener?
...this would be following the link, but the difference is most noticeable in form submit handlers, where you can cancel a form submission if the user has made a mistake entering the information.
I don't believe there is a W3C specification for this. All the ancient JavaScript interfaces like this ha...
classical inheritance vs prototypal inheritance in javascript
...r programs.
Theoretically an abstraction is defined as "a general concept formed by extracting common features from specific examples". However for the sake of this explanation we're going to use the aforementioned definition instead.
Now some objects have a lot of things in common. For example a ...
Capturing URL parameters in request.GET
...
No problem. use request.GET if you submit a form using GET, use request.POST if you submit a form using POST, and if you just want to configure URLs to have variable sections, then it's a URLconf/view argument.
– camflan
Sep 29 '0...
How to redirect to previous page in Ruby On Rails?
... /posts/new, this is set as the referer for the next request, so after the form is successfully submitted it shows the form again, i.e /posts/new. It does however work well for other purposes.
– Kris
Feb 1 '12 at 16:15
...