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What would cause an algorithm to have O(log n) complexity?
... a good reason for this. Suppose that we divide a number n by 2 i times. Then we get the number n / 2i. If we want to solve for the value of i where this value is at most 1, we get
n / 2i ≤ 1
n ≤ 2i
log2 n ≤ i
In other words, if we pick an integer i such that i ≥ log2 n, t...
Is it possible to create a “weak reference” in javascript?
...eference method, and when there are no manually-tracked references anymore then entry can be deleted, leaving future lookups on that key to return null.
This is not really a weakref, but it can solve some of the same problems. It's typically done in complex web applications to prevent memory leakag...
jQuery get textarea text
...webpage (as in, you press the ` key like you do in FPS games, etc.), and then have it Ajax itself back to the server in-order to do stuff.
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How to take MySQL database backup using MySQL Workbench?
... In MySQL Workbench 6.1, you'll have to open the desired MySQL Connection. Then go to this menu: Server/Data Export =)
– Metafaniel
Feb 24 '15 at 19:38
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android studio 0.4.2: Gradle project sync failed error
...e folders from your project folder.
In Android Studio: Open your project then: File -> settings -> compiler -> gradle: enable offline mode
Note: In relatively newer Android Studios, Offline mode has been moved to gradle setting.
Close your project: File -> close project
Connect to...
What is PostgreSQL explain telling me exactly?
...the first row of the table and emits it. The LIMIT reads its first row and then emits it.
When would a component need to do a lot of processing before it can start to output any rows? There are a lot of possible reasons, but let's look at one clear example. Here's the same query from before but now...
Checking if a list is empty with LINQ
...mply use the .Count property of those, instead of the .Any() approach, but then fall back to .Any() if no guarantee can be made.
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git - pulling from specific branch
I have cloned a git repository to my dev server and then switched to the dev branch but now I can't do a git pull to update the branch.
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Find nearest value in numpy array
...s no work. If you find one I will modify my answer. If you cannot find one then could you remove your comments?
– kwgoodman
Apr 9 '15 at 17:12
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Where should signal handlers live in a django project?
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If you're listening to the signals emitted by that model then putting all the listeners there too makes the whole exercise pointless, doesn't it? The point of signals is to decouple. Shouldn't the listeners live with the code that is interested in these remote events? The question ...