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How can I see the SQL that will be generated by a given ActiveRecord query in Ruby on Rails
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When last I tried to do this there was no official way to do it. I resorted to using the function that find and its friends use to generate their queries directly. It is private API so there is a huge risk that Rails 3 will totally break it, but for debugging, it is an ok solution.
Th...
How to get current memory usage in android?
I have used /proc/meminfo and parsed command response.however it result shows that :
11 Answers
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Am I immoral for using a variable name that differs from its type only by case?
... the reasoning of those telling you this is bad? I do this all the time. It is the simplest, expressive way to name a single variable of a type. If you needed two Person objects then you could prefix person with meaningful adjectives like
fastPerson
slowPerson
otherwise just
person
is fine ...
What's the hardest or most misunderstood aspect of LINQ? [closed]
...ession of. I won't be specifically talking about LINQ to SQL or the Entity Framework except as examples of how queries can be executed remotely using expression trees (and usually IQueryable ).
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LINQ: When to use SingleOrDefault vs. FirstOrDefault() with filtering criteria
...g the appropriate one, depending on the expected results, improves readability.
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Do I cast the result of malloc?
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No; you don't cast the result, since:
It is unnecessary, as void * is automatically and safely promoted to any other pointer type in this case.
It adds clutter to the code, casts are not very easy to read (especially if the pointer type is long).
It makes you rep...
JUnit vs TestNG [closed]
At work we are currently still using JUnit 3 to run our tests. We have been considering switching over to JUnit 4 for new tests being written but I have been keeping an eye on TestNG for a while now. What experiences have you all had with either JUnit 4 or TestNG, and which seems to work better fo...
Difference between declaring variables before or in loop?
... to repeatedly inside the loop, makes any (performance) difference?
A (quite pointless) example in Java:
25 Answers
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Dynamically load a JavaScript file
...le? This will can be used to implement a module or component that when 'initialized' the component will dynamically load all needed JavaScript library scripts on demand.
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Using Pylint with Django
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Do not disable or weaken Pylint functionality by adding ignores or generated-members.
Use an actively developed Pylint plugin that understands Django.
This Pylint plugin for Django works quite well:
pip install pylint-django
and when running pylint add the followi...