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:active pseudo-class doesn't work in mobile safari
In Webkit on iPhone/iPad/iPod, specifying styling for an :active pseudo-class for an <a> tag doesn't trigger when you tap on the element. How can I get this to trigger? Example code:
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How to efficiently compare two unordered lists (not sets) in Python?
...ome way to provide that as a key (and for Python 3, as a consistent type). One potential way that would work for a lot of arbitrary objects is to sort by their repr(). Of course, this could waste a lot of extra time and memory building repr() strings for large lists and so on.
sorted(a, key=repr) =...
Is “ ” a replacement of “ ”?
...our editor is simply inserting the numberic reference instead of the named one.
See the Wikipedia page for the non-breaking space.
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RegEx - Match Numbers of Variable Length
...rthand for [0-9], but the important part is the addition of + which means "one or more".
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Print All JVM Flags
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Then look at the source files. Probably the best reason why there is no one document that describes all options is that some of these options are better left to those who really understand the JVM and the best way to do that is to become intimately familiar with the source code.
So, in the words...
Way to read first few lines for pandas dataframe
...nk you can use the nrows parameter. From the docs:
nrows : int, default None
Number of rows of file to read. Useful for reading pieces of large files
which seems to work. Using one of the standard large test files (988504479 bytes, 5344499 lines):
In [1]: import pandas as pd
In [2]: time...
Android studio add external project to build.gradle
...ject, a common library project and the main app project. Each is a stand-alone development project and the two libraries are meant to be shared between multiple apps.
In settings.gradle for the common project:
def apiLibDir = file('../android-api/android-api-lib')
def rootProjectDescriptor = sett...
Programmatically open new pages on Tabs
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I'm pretty sure "_newtab" is meaningless, unless someone has documentation to the contrary. All you're doing is opening a window who's name is _newtab (which is why all subsequent links with that target open in the same window). You can target "foo" or "bar" and see the same ...
Is there any Rails function to check if a partial exists?
...ing is expensive, and File.exists? assumes that the partial can only be in one location. @Rein's solution using the lookup_context is the way to go I believe.
– Bert Goethals
Feb 14 '12 at 9:32
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Ruby on Rails production log rotation
...g a copy, instead of moving the old log file and optionally creating a new one, It can be used when some program can not be told to close its logfile and thus might continue writing (appending) to the previous log file forever. Note that there is a very small time slice between copying the file...