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offsetting an html anchor to adjust for fixed header [duplicate]
...on! It seems not to work with IE7. Anyway, I plan to ignore IE7 users from now on...
– user334639
Sep 19 '13 at 15:35
...
When should one use RxJava Observable and when simple Callback on Android?
...});
The RxJava variant is not much better than the Callback variant. For now, let's ignore the error handling.
Let's take a list of photos:
RxJava:
api.getUserPhotos(userId)
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.flatMap(new Func1<List<Photo>, Observab...
Can a class member function template be virtual?
... just indirection, and there is no "runtime figuring out" involved, it is known during compile time that the function to be called is the one pointed to by the n-th pointer in the vtable. "Figuring out" implies there are type checks and such, which is not the case. Once the run-time system figured o...
.NET 4.0 has a new GAC, why?
%windir%\Microsoft.NET\assembly\ is the new GAC . Does it mean now we have to manage two GACs, one for .NET 2.0-3.5 applications and the other for .NET 4.0 applications?
...
How to build Qt for Visual Studio 2010
...7: the latest Qt 4.x branch (Qt 4.8.6) has 2 pre-built packages, which are now in the archive section:
http://download.qt.io/archive/qt/4.8/4.8.6/qt-opensource-windows-x86-vs2010-4.8.6.exe
http://download.qt.io/archive/qt/4.8/4.8.6/qt-opensource-windows-x86-vs2008-4.8.6.exe
You should not downlo...
How to stop /#/ in browser with react-router?
...outer>. From the histories documentation:
In a nutshell, a history knows how to listen to the browser's address bar for changes and parses the URL into a location object that the router can use to match routes and render the correct set of components.
Versions 2 and 3
In react-router 2 and...
How do I preview emails in Rails?
...
Action Mailer now has a built in way of previewing emails in Rails 4.1. For example, check this out:
# located in test/mailers/previews/notifier_mailer_preview.rb
class NotifierPreview < ActionMailer::Preview
# Accessible from http:...
Why use iterators instead of array indices?
...is a concurrent modification to the structure you are accessing, you will know about it. You can't do that with just an integer.
– Marcin
Oct 21 '08 at 22:25
4
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What is the purpose of Android's tag in XML layouts?
...e widget, you would have to use a layout.
Let's say that include1.xml has now two TextView: a layout has to be declared. Let's choose a LinearLayout.
include1.xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/layout2"
android:layout_width...
Why were pandas merges in python faster than data.table merges in R in 2012?
...
It looks like Wes may have discovered a known issue in data.table when the number of unique strings (levels) is large: 10,000.
Does Rprof() reveal most of the time spent in the call sortedmatch(levels(i[[lc]]), levels(x[[rc]])? This isn't really the join itself (t...