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How is the “greater than” or “>” character used in CSS?
I have seen this character a number of times in CSS files but I have no idea how its used. Can anyone explain it to me and show how they are useful in making a page style easier?
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The Ruby %r{ } expression
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It mean that image_file_name must end ($) with dot and one of gif, jpg, jpeg or png.
Yes %r{} mean exactly the same as // but in %r{} you don't need to escape /.
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How to specify the order of CSS classes?
...nt.
The question is: in what order do the style rules appear in your .css file. In your example, .basic comes after .extra so the .basic rules will take precedence wherever possible.
If you want to provide a third possibility (e.g., that it's .basic but that the .extra rules should still apply), ...
Should I use `import os.path` or `import os`?
...os.path is a module. I always structure my packages with empty __init__.py files so that at the same level I always have one type of thing: a module/package or other stuff. Several big Python projects take this approach, which tends to make more structured code.
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How to delete a row by reference in data.table?
... (and deleted) at the end, instantly; e.g., a growing time series.
It's filed as an issue: Delete rows by reference.
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System.currentTimeMillis vs System.nanoTime
...ndows/vm/os_windows.cpp in OpenJDK (hg.openjdk.java.net/jdk8/jdk8/hotspot/file/87ee5ee27509/src/os/…). Looks like it's still GetSystemTimeAsFileTime, so I do not know where change comes from. Or if it's even valid. Test before using.
– user3458
Dec 16 '15 at...
Is there a regular expression to detect a valid regular expression?
...t of {} . I am making a script that could grep a code base to find all the files that contain regular expressions
This pattern exploits an extension called recursive regular expressions. This is not supported by the POSIX flavor of regex. You could try with the -P switch, to enable the PCRE regex ...
How do I append one string to another in Python?
...a large string, you can use StringIO or cStringIO. The interface is like a file. ie: you write to append text to it.
If you're just appending two strings then just use +.
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What are the differences between PMD and FindBugs?
...s that PMD works on source code, while FindBugs works on compiled bytecode files. But in terms of capabilities, should it be an either/or choice or do they complement each other?
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Using .otf fonts on web browsers
...ypes are implemented and their hacks here. To get a detailed view of which file-types are supported by which browsers, see:
@font-face Browser Support
EOT Browser Support
WOFF Browser Support
TTF Browser Support
SVG-Fonts Browser Support
hope this helps
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