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Anyone else find naming classes and methods one of the most difficult parts in programming? [closed]

...009-01-07.log not 1-7-2009.log because after you have a bunch of them, the order becomes totally useless. share | improve this answer | follow | ...
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How to pull a random record using Django's ORM?

... Using order_by('?') will kill the db server on the second day in production. A better way is something like what is described in Getting a random row from a relational database. from django.db.models.aggregates import Count from r...
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How to install trusted CA certificate on Android device?

...website: As of Android N, you need to add configuration to your app in order to have it trust the SSL certificates generated by Charles SSL Proxying. This means that you can only use SSL Proxying with apps that you control. In order to configure your app to trust Charles, you need to ...
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Dynamically select data frame columns using $ and a character value

...the second is a data.frame mtcars[[var]] mtcars[var] You can perform the ordering without loops, using do.call to construct the call to order. Here is a reproducible example below: # set seed for reproducibility set.seed(123) df <- data.frame( col1 = sample(5,10,repl=T) , col2 = sample(5,10,r...
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Why would anyone use set instead of unordered_set?

C++0x is introducing unordered_set which is available in boost and many other places. What I understand is that unordered_set is hash table with O(1) lookup complexity. On the other hand, set is nothing but a tree with log(n) lookup complexity. Why on earth would anyone use set instead ...
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Is the order of elements in a JSON list preserved?

I've noticed the order of elements in a JSON object not being the original order. 5 Answers ...
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Hashset vs Treeset

... log-time for most operations like add, remove and contains) but offers no ordering guarantees like TreeSet. HashSet the class offers constant time performance for the basic operations (add, remove, contains and size). it does not guarantee that the order of elements will remain constant over ti...
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Converting dict to OrderedDict

I am having some trouble using the collections.OrderedDict class. I am using Python 2.7 on Raspbian, the Debian distro for Raspberry Pi. I am trying to print two dictionaries in order for comparison (side-by-side) for a text-adventure. The order is essential to compare accurately. No matter what I...
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Case objects vs Enumerations in Scala

... The other difference is that Enumeration enum is ordered out of the box, whereas case object based enum obviosly not – om-nom-nom Oct 18 '12 at 11:48 1 ...
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How to reset sequence in postgres and fill id column with new data?

... If you don't want to retain the ordering of ids, then you can ALTER SEQUENCE seq RESTART WITH 1; UPDATE t SET idcolumn=nextval('seq'); I doubt there's an easy way to do that in the order of your choice without recreating the whole table. ...