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What does “#define _GNU_SOURCE” imply?
...he POSIX definitions take precedence.
From the Linux man page on feature test macros:
_GNU_SOURCE
Defining this macro (with any value) implicitly defines
_ATFILE_SOURCE, _LARGEFILE64_SOURCE, _ISOC99_SOURCE,
_XOPEN_SOURCE_EXTENDED, _POSIX_SOURCE, _POSIX_C_...
Django get the static files URL in view
...
here's another way! (tested on Django 1.6)
from django.contrib.staticfiles.storage import staticfiles_storage
staticfiles_storage.url(path)
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Using TortoiseSVN how do I merge changes from the trunk to a branch and vice versa?
...
I left out "Revision range to merge" and did a "Test Merge". It was what I needed: the range was automatically set for me (from when the branch was done to the last revision in the branch)
– Lian
Aug 7 '13 at 18:51
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When I catch an exception, how do I get the type, file, and line number?
...traceback.py#l280
# (Imagine if the 1/0, below, were replaced by a call to test() which did 1/0.)
try:
1/0
except:
# http://docs.python.org/2/library/sys.html#sys.exc_info
exc_type, exc_value, exc_traceback = sys.exc_info() # most recent (if any) by default
'''
Reason this _can...
Change values while iterating
...seems simpler to me to refer to n.Attr[i] explicitly in both the line that tests Key and the line that sets Val, rather than using attr for one and n.Attr[i] for the other.
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How to keep Maven profiles which are activeByDefault active even if another profile gets activated?
...always be true (unless someone deletes the directory during Maven boot :). Tested with Maven 3.6.0.
It might also be a good way to differentiate between types of projects. For instance, my project has always module.json present.
Using a profile activating extension
There are a few Maven extension...
Remove border radius from Select tag in bootstrap 3
...d on Arno Tenkink's suggestion in the comments, here is an example using a svg instead of a png for the arrow icon.
select:not([multiple]) {
-webkit-appearance: none;
-moz-appearance: none;
background-position: right 50%;
background-repeat: no-repeat;
background-image: ...
How do I center an SVG in a div?
I have an SVG that I am trying to center in a div. The div has a width or 900px. The SVG has a width of 400px. The SVG has its margin-left and margin-right set to auto. Doesn't work, it just acts as if the left margin is 0 (default).
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How to swap keys and values in a hash
... []
out[value] << key
end
end
end
Note: This code with tests is now on GitHub.
Or:
class Hash
def safe_invert
self.each_with_object({}){|(k,v),o|(o[v]||=[])<<k}
end
end
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nodeValue vs innerHTML and textContent. How to choose?
...han telling people what to do]
In case someone is wondering what's the fastest today:
https://jsperf.com/set-innertext-vs-innerhtml-vs-textcontent
& https://jsperf.com/get-innertext-vs-innerhtml-vs-textcontent (for the second test, the span's content is plain text, results might change accordin...