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ReactJS state vs prop
...it change over time? If not, it probably isn't state.
Can you compute it based on any other state or props in your
component? If so, it's not state.
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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...
Python int to binary string?
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For a more general philosophy, no language or library will give its user base everything that they desire. If you're working in an environment that doesn't provide exactly what you need, you should be collecting snippets of code as you develop to ensure you never have to write the same thing twice...
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...
What is the difference between instanceof and Class.isAssignableFrom(…)?
... performance:
isInstance
instanceof (+ 0.5%)
isAssignableFrom (+ 2.7%)
Based on a benchmark of 2000 iterations on JAVA 8 Windows x64, with 20 warmup iterations.
In theory
Using a soft like bytecode viewer we can translate each operator into bytecode.
In the context of:
package foo;
public c...
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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