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Hashset vs Treeset
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This advice is based on the fact that for a set, you must check to see if an item is a duplicate before adding it; therefore you'll save time eliminating the duplicates if you are using an hashset over a treeset. However, considering the pr...
XmlSerializer giving FileNotFoundException at constructor
...} else { Fallback } instead of try { Load } catch { Fallback }. Exception-based flow control smells bad and makes my debugging experience more difficult and brittle than necessary.
– Timbo
Jul 28 '15 at 22:19
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What is the difference between pluck and collect in Rails?
...ects with all fields loaded and you simply get the id thanks to the method based on Enumerable.
So:
if you only need the id with Rails 4, use ids: User.first.gifts.ids
if you only need some fields with Rails 4, use pluck: User.first.gifts.pluck(:id, :name, ...)
if you only need one field with Rai...
How can I edit a view using phpMyAdmin 3.2.4?
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maybe you could create a new view based upon the result of the command above and add your edits to it?
– CheeseConQueso
Nov 11 '10 at 16:47
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iterating over each character of a String in ruby 1.8.6 (each_char)
...o ruby and currently trying to operate on each character separately from a base String in ruby. I am using ruby 1.8.6 and would like to do something like:
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What is the difference between Nexus and Maven?
...few statement that can put the difference in focus:
We migrated our code base from Ant to Maven
All 3rd party librairies have been uploaded to Nexus. Maven is using Nexus as a source for libraries.
Basic functionalities of a repository manager like Sonatype are:
Managing project dependencies,
Ar...
Versioning SQL Server database
I want to get my databases under version control. Does anyone have any advice or recommended articles to get me started?
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SQL update fields of one table from fields of another one
...I can think of.
This is specific to PostgreSQL. I am building dynamic code based on the the information_schema, in particular the table information_schema.columns, which is defined in the SQL standard and most major RDBMS (except Oracle) have it. But a DO statement with PL/pgSQL code executing dynam...
Rolling back a remote Git repository
...ng in a public or shared repository, you may diverge and break others work based on your original branch. Git will prevent you doing so, but you can use git push -f to force the update.
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Getting value of public static final field/property of a class in Java via reflection
... reflection question that uses a particular example. Questions are tagged based on their topic.
– Matthew Read
Dec 19 '16 at 17:05
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