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How to access the first property of a Javascript object?
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Update from 2019, I think that this works on most browsers except for IE developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…
– ppak10
Nov 27 '19 at 2:46
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How do I compare two hashes?
...overlapping_elements = hash1.to_a & hash2.to_a
exclusive_elements_from_hash1 = hash1.to_a - overlapping_elements
exclusive_elements_from_hash2 = hash2.to_a - overlapping_elements
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How to “git clone” including submodules?
...jects and more.
This change reduces the time for git fetch(man) in my repo from 25s to 6s.
Original answer 2010
As joschi mentions in the comments, git submodule now supports the --recursive option (Git1.6.5 and more).
If --recursive is specified, this command will recurse into the registered sub...
In a django model custom save() method, how should you identify a new object?
...te.adding is True creating
self._state.adding is False updating
I got it from this page
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Application Crashes With “Internal Error In The .NET Runtime”
...p folder. There're some other crash dumps there, and we can find the dumps from the crashes days ago. Do you know why there's no crash dumps? The error message and exit code are exactly the same.
– Jeffrey Zhao
Jun 9 '15 at 3:33
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How can I generate Unix timestamps?
...ime value is rather less easy. Logically, you use the strptime() function from POSIX. However, the Perl POSIX::strptime module (which is separate from the POSIX module) has the signature:
($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) =
POSIX::strptime...
How do you set the Content-Type header for an HttpClient request?
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It made difference downloading a pdf. From the phone it tried to download an HTML. After converting the extension the file was normally encoded.
– Matteo Defanti
Aug 22 '15 at 18:08
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Can you put two conditions in an xslt test attribute?
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From XML.com:
Like xsl:if instructions, xsl:when
elements can have more elaborate
contents between their start- and
end-tags—for example, literal result
elements, xsl:element elements, or
even xsl:if and xsl:c...
Node / Express: EADDRINUSE, Address already in use - Kill server
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I was running it from the Command Window and closed it by accident. Node kept running in the back ground... (even after the session was terminated). In my case once I closed the browser tab that was connected to it via web-sockets it finally ...
Inputting a default image in case the src attribute of an html is not valid?
...ebsite for compatibility. This element is widely supported by all browsers from IE6+.
* Unless the URL for the image changed (again), in which case you'll probably see the alt text.
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