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Python Infinity - Any caveats?
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Greg HewgillGreg Hewgill
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How do malloc() and free() work?
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OK some answers about malloc were already posted.
The more interesting part is how free works (and in this direction, malloc too can be understood better).
In many malloc/free implementations, free does normally not return the memory to the operating system (or...
What are the differences between 'call-template' and 'apply-templates' in XSL?
...t;xsl:call-template> is a close equivalent to calling a function in a traditional programming language.
You can define functions in XSLT, like this simple one that outputs a string.
<xsl:template name="dosomething">
<xsl:text>A function that does something</xsl:text>
</x...
How to access the correct `this` inside a callback?
...ought of as lambda functions. They don't have their own this binding. Instead, this is looked up in scope just like a normal variable. That means you don't have to call .bind. That's not the only special behavior they have, please refer to the MDN documentation for more information.
function MyConst...
What is the difference between i++ and ++i?
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LarsTech
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answered Jul 27 '10 at 18:22
Kieren JohnstoneKieren Joh...
Tools for analyzing performance of a Haskell program
...t tools, including:
runtime statistics
time profiling
heap profiling
thread analysis
core analysis.
comparative benchmarking
GC tuning
A tutorial on using time and space profiling is part of Real World Haskell.
GC Statistics
Firstly, ensure you're compiling with ghc -O2. And you might make sur...
How to wait for all goroutines to finish without using time.Sleep?
...s {
// Increment the WaitGroup counter.
wg.Add(1)
// Launch a goroutine to fetch the URL.
go func(url string) {
// Decrement the counter when the goroutine completes.
defer wg.Done()
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Why am I getting a “401 Unauthorized” error in Maven?
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I've had similar errors when trying to deploy a Gradle artefact to a Nexus Sonatype repository. You will get a 401 Unauthorized error if you supply the wrong credentials (password etc). You also get an error (and off the top of m...
How to manage REST API versioning with spring?
...How can I do a custom request mapping that does arbitrary evaluations of header values from the request without doing the evaluation in the method body?
As described in this SO answer you actually can have the same @RequestMapping and use a different annotation to differentiate during the actual ro...
SQL Server CTE and recursion example
I never use CTE with recursion. I was just reading an article on it. This article shows employee info with the help of Sql server CTE and recursion. It is basically showing employees and their manager info. I am not able to understand how this query works. Here is the query:
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