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Use cases for the 'setdefault' dict method
...or them:
headers = parse_headers( msg ) # parse the message, get a dict
# now add all the optional headers
for headername, defaultvalue in optional_headers:
headers.setdefault( headername, defaultvalue )
share
...
Better naming in Tuple classes than “Item1”, “Item2”
...struct), while Tuple is an immutable reference type (class). As far as I know, there's no way to get a reference type Tuple with friendly item names.
– dx_over_dt
Jul 11 '18 at 21:20
...
Convert seconds to HH-MM-SS with JavaScript?
...
Don't you know datejs? it is a must know.
Using datejs, just write something like:
(new Date).clearTime()
.addSeconds(15457)
.toString('H:mm:ss');
--update
Nowadays date.js is outdated and not maintained, so use...
Is cout synchronized/thread-safe?
...
Technically true for C++98/C++03, but I think everybody knows that. But this does not answer the two interesting questions: What about C++0x? What do typical implementations actually do?
– Nemo
Jun 16 '11 at 15:46
...
How do you move a file?
...is doesn't seem like it worked correctly. I'm afraid to commit it without knowing if this is the way it's supposed to work or not
– Joe Phillips
Jul 12 '11 at 21:44
48
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How to upgrade all Python packages with pip?
...
Right :( The issue now lives at github.com/pypa/pip/issues/59 . But every suggestion seems to be answered with "Yeah, but I'm too sure if X is the right way to do Y"... Now is better than never? Practicality beats purity? :(
...
jQuery event to trigger action when a div is made visible
...igger a before show if you want
obj.trigger('beforeShow');
// now use the old function to show the element passing the new callback
_oldShow.apply(obj, [speed, newCallback]);
});
}
});
Usage example:
jQuery(function($) {
$('#test')
.bind('beforeShow', function() {
...
TypeError: $ is not a function when calling jQuery function
...
This should fix it:
jQuery(document).ready(function($){
//you can now use $ as your jQuery object.
var body = $( 'body' );
});
Put simply, WordPress runs their own scripting before you can and they release the $ var so it won't collide with other libraries. This makes total sense, as Wo...
How to disable Golang unused import error
...reats unused import as error, forcing you to delete the import.
I want to know if there exists some hope to change to this behavior, e.g. reducing it to warning.
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Repairing Postgresql after upgrading to OSX 10.7 Lion
...
It's a PATH issue. Mac OSX Lion includes Postgresql in the system now. If you do a which psql you'll likely see usr/bin/psql instead of usr/local/bin/psql which is HomeBrew's correct one. If you run brew doctor you should get a message stating that you need to add usr/local/bin to the head ...