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Why should C++ programmers minimize use of 'new'?
...d automatically at the end of scope. As soon as execution of current code block (delimited using {}) is completed, memory for all variables in that block is automatically collected. This is also the moment where destructors are invoked to clean up resources.
Heap
The heap allows for a more flexibl...
Spring: Why do we autowire the interface and not the implemented class?
...
class B implements IA
{
public void someFunction()
{
//busy code block
}
public void someBfunc()
{
//doing b things
}
}
class C implements IA
{
public void someFunction()
{
//busy code block
}
public void someCfunc()
{
//doing C things
}
}
class MyRunne...
Which would be better for concurrent tasks on node.js? Fibers? Web-workers? or Threads?
...asynchronously. No state is shared. No locking problems exist. There is no blocking. There is no synchronization needed. Just like when you use a RESTful service from your Node program you don't worry that it is now "multithreaded" because the RESTful service is not in the same thread as your own ev...
Highlight bash/shell code in markdown
...ttps://github.com/adam-p/markdown-here/wiki/Markdown-Cheatsheet#code
Code blocks are part of the Markdown spec, but syntax highlighting isn't.
However, many renderers -- like Github's and Markdown Here -- support syntax highlighting. Which languages are supported and how those language names should...
Webrick as production server vs. Thin or Unicorn?
...e that has multiple components, and maybe one section is Rails, another is PHP, and rewrites are needed for both (i.e. rewrite old PHP paths to Rails)
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How can I default a parameter to Guid.Empty in C#?
...lt to a new object creates a new object every time the method is called in PHP; but only creates one object for the entire program in Python. Really, I consider this to be one of the very few design flaws of Python. I'm somewhat glad C# (and VB.Net) avoided this issue by simply disallowing new obj...
Timeout for python requests.get entire response
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timeout=None is not blocking the call.
– crazydan
Sep 7 '19 at 17:39
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show 2 more co...
How to search for occurrences of more than one space between words in a line
...ase it's a good practice to add ? , like this .*?. It happened to me using PHP's PCRE
– AlexanderMP
Sep 21 '10 at 9:35
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Creating an empty file in Ruby: “touch” equivalent?
...s:
File.open("foo.txt", "w") {}
From the docs:
If the optional code block is given, it will be passed the opened file
as an argument, and the File object will automatically be closed when
the block terminates.
sh...
What does map(&:name) mean in Ruby?
...thod as &foo, which will call foo.to_proc and use that as the method's block.
The Symbol#to_proc method was originally added by ActiveSupport but has been integrated into Ruby 1.8.7. This is its implementation:
class Symbol
def to_proc
Proc.new do |obj, *args|
obj.send self, *args
...