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Why is iterating through a large Django QuerySet consuming massive amounts of memory?
...perience is Django loading the database rows and creating objects for each one, before returning something you can actually iterate over. Then you have everything in memory, and the results come spilling out.
From my reading of the docs, iterator() does nothing more than bypass QuerySet's internal...
Managing large binary files with Git
...ll history of all your source but, as I understand it, you'd only have the one relevant revision of your images submodule. The git-submodule facility should help you keep the correct version of the code in line with the correct version of the images.
Here's a good introduction to submodules from G...
How do I initialize an empty array in C#?
...s not result in an empty array, does it? It looks like it's an array with one element where that element is null.
– rory.ap
Sep 27 '13 at 14:24
15
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How to make “if not true condition”?
...OP really does search on "sys" or somesuch, he'll get quite the surprise. one more for the road? (( $( cat file | grep regex | wc -l ) ? 0 : 1 ))
– Orwellophile
Jun 1 '15 at 17:12
...
How to link to specific line number on github
...et the permanent link by providing a ... menu on the left after you select one or more lines. Please upvote @watashiSHUN's answer too.
update 3/25/2016: Case in point — in the example above, I referred to the "README" file in the URL. Those non-canonical urls actually worked when this answer wa...
Proper way to exit iPhone application?
I am programming an iPhone app, and I need to force it to exit due to certain user actions. After cleaning up memory the app allocated, what's the appropriate method to call to terminate the application?
...
How to identify if a webpage is being loaded inside an iframe or directly into the browser window?
...de note.
In IE7/IE8 when Microsoft added Tabs to their browser they broke one thing that will cause havoc with your JS if you are not careful.
Imagine this page layout:
MainPage.html
IframedPage1.html (named "foo")
IframedPage2.html (named "bar")
IframedPage3.html (named "baz")
Now ...
Position geom_text on dodged barplot
...
Exactly what I want! I owe you a beer for this one! =)
– aL3xa
May 16 '11 at 13:25
2
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Vertically centering a div inside another div [duplicate]
...out will impact your rendering performance so I would suggest that you use one of the more modern solutions.
Here is an example
Tested in:
FF3.5+
FF4+
Safari 5+
Chrome 11+
IE9+
HTML
<div class="cn"><div class="inner">your content</div></div>
CSS
.cn {
display...
What is the equivalent of the C++ Pair in Java?
...ond" mean ?).
A better practice is to write a very simple class, like the one Mike proposed, for each application you would have made of the Pair class. Map.Entry is an example of a pair that carry its meaning in its name.
To sum up, in my opinion it is better to have a class Position(x,y), a clas...