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Do you need to dispose of objects and set them to null?
... they are no longer being used and when the garbage collector sees fit. Sometimes, you may need to set an object to null in order to make it go out of scope (such as a static field whose value you no longer need), but overall there is usually no need to set to null.
Regarding disposing objects, I ...
Difference between git checkout --track origin/branch and git checkout -b branch origin/branch
...
The two commands have the same effect (thanks to Robert Siemer’s answer for pointing it out).
The practical difference comes when using a local branch named differently:
git checkout -b mybranch origin/abranch will create mybranch and track origi...
What are the differences between 'call-template' and 'apply-templates' in XSL?
...s in XSLT, like this simple one that outputs a string.
<xsl:template name="dosomething">
<xsl:text>A function that does something</xsl:text>
</xsl:template>
This function can be called via <xsl:call-template name="dosomething">.
<xsl:apply-templates> is a li...
Coding Practices which enable the compiler/optimizer to make a faster program
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Write to local variables and not output arguments! This can be a huge help for getting around aliasing slowdowns. For example, if your code looks like
void DoSomething(const Foo& foo1, const Foo* foo2, int numFoo, Foo& barOut)
{
for (int i=0; i<numFoo, ...
Creating a blocking Queue in .NET?
...multiple threads adding to a queue and multiple threads reading from the same queue. If the queue reaches a specific size all threads that are filling the queue will be blocked on add until an item is removed from the queue.
...
Good ways to manage a changelog using git?
...ng that every contributor to your project writes clear and readable commit messages, you'll still be generating a "changelog" containing TONS of noise. Changelogs should be written with the goal of explaining to the users of your project the notable changes relevant to them that occurred between rel...
What does it mean to hydrate an object?
When someone talks about hydrating an object, what does that mean?
4 Answers
4
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How to iterate over rows in a DataFrame in Pandas
I have a DataFrame from Pandas:
22 Answers
22
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Can someone explain __all__ in Python?
...seeing the variable __all__ set in different __init__.py files. Can someone explain what this does?
11 Answers
...
Select first row in each GROUP BY group?
...a, Sybase, Vertica:
WITH summary AS (
SELECT p.id,
p.customer,
p.total,
ROW_NUMBER() OVER(PARTITION BY p.customer
ORDER BY p.total DESC) AS rk
FROM PURCHASES p)
SELECT s.*
FROM summary s
WHERE s.rk = 1
Supported by...