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Hidden features of Perl?
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The flip-flop operator is useful for skipping the first iteration when looping through the records (usually lines) returned by a file handle, without using a flag variable:
while(<$fh>)
{
next if 1..1; # skip first record
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}
Run per...
How do I return multiple values from a function? [closed]
The canonical way to return multiple values in languages that support it is often tupling .
14 Answers
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How to get current route in Symfony 2?
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From something that is ContainerAware (like a controller):
$request = $this->container->get('request');
$routeName = $request->get('_route');
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Unique ways to use the Null Coalescing operator [closed]
I know the standard way of using the Null coalescing operator in C# is to set default values.
16 Answers
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Is a LINQ statement faster than a 'foreach' loop?
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answered Jul 1 '10 at 8:21
codymanixcodymanix
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@ variables in Ruby on Rails
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title is a local variable. They only exists within its scope (current block)
@title is an instance variable - and is available to all methods within the class.
You can read more here:
http://strugglingwithruby.blogspot.dk/2010/03...
Is there a predefined enumeration for Month in the .NET library?
I'm looking to see if there is an official enumeration for months in the .net framework.
11 Answers
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What does [].forEach.call() do in JavaScript?
...ets of code, and I found multiple elements calling a function over a node list with a forEach applied to an empty array.
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Post-increment and pre-increment within a 'for' loop produce same output [duplicate]
...be the same in both cases. The difference between pre- and post-increment is in the result of evaluating the expression itself.
++i increments i and evaluates to the new value of i.
i++ evaluates to the old value of i, and increments i.
The reason this doesn't matter in a for loop is that the fl...
What should I name a table that maps two tables together? [closed]
...relationship easier to read and understand. Sometimes finding a great name is not trivial but usually it is worth to spend some time thinking about.
An example: Reader and Newspaper.
A Newspaper has many Readers and a Reader has many Newspapers
You could call the relationship NewspaperReader but ...