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Equivalent of Math.Min & Math.Max for Dates?
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answered Dec 31 '09 at 13:01
Mehrdad AfshariMehrdad Afshari
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What does $$ mean in the shell?
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answered Sep 17 '08 at 0:01
FlintFlint
43722 silver badges33 bronze badges
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What is the difference between save and insert in Mongo DB?
...ur query params. If there is no such matching document, that's when upsert comes in picture.
upsert : false : Nothing happens when no such document exist
upsert : true : New doc gets created with contents equal to query params and update params
save : Doesn't allow any query-params. if _id exists ...
PostgreSQL: Difference between text and varchar (character varying)
...l varlena (variable length array).
Check this article from Depesz: http://www.depesz.com/index.php/2010/03/02/charx-vs-varcharx-vs-varchar-vs-text/
A couple of highlights:
To sum it all up:
char(n) – takes too much space when dealing with values shorter than n (pads them to n), and c...
python pandas dataframe to dictionary
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Note that this command will lose data if there redundant values in the ID columns: >>> ptest = p.DataFrame([['a',1],['a',2],['b',3]], columns=['id', 'value']) >>> ptest.set_index('id')['value'].to_dict()
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Replace whitespaces with tabs in linux
...ARDS
The expand and unexpand utilities conform to IEEE Std 1003.1-2001
(``POSIX.1'').
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How to draw polygons on an HTML5 canvas?
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from http://www.scienceprimer.com/drawing-regular-polygons-javascript-canvas:
The following code will draw a hexagon. Change the number of sides to create different regular polygons.
var ctx = document.getElementById('hexagon').get...
throws Exception in finally blocks
...owever, the concept that the Exception should not be just ignored was most compactly handled by showing a log statement.
– Darron
Feb 17 '10 at 15:09
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Browsers' default CSS for HTML elements
...Trident), older versions: http://web.archive.org/web/20170122223926/http://www.iecss.com/
You can also look at the HTML5 Boilerplate stylesheet, which "normalizes the display of a lot of stuff without being a reset in the traditional sense". It also fixes quite a few bugs/inconsistencies.
It's al...
How can I detect if a browser is blocking a popup?
... exception list.");
}
};
Usage:
var popup = window.open("http://www.google.ca", '_blank');
popupBlockerChecker.check(popup);
Hope this helps! :)
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