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Why are C# 4 optional parameters defined on interface not enforced on implementing class?
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UPDATE: This question was the subject of my blog on May 12th 2011. Thanks for the great question!
Suppose you have an interface as you describe, and a hundred classes that implement it. Then you decide to make one of the parameters of one of the interface's methods optional. Are you su...
How to generate a Dockerfile from an image?
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120
How to generate or reverse a Dockerfile from an image?
You can.
alias dfimage="docker run -v /...
Open Graph namespace declaration: HTML with XMLNS or head prefix?
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Matt Beckman
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answered Nov 23 '11 at 11:55
Paul TarjanPaul Tar...
Why can I create a class named “var”?
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101
var is not a keyword according to this list.
it is a contextual keyword, so from the context t...
How to enumerate a range of numbers starting at 1
... using Python 2.5, I want an enumeration like so (starting at 1 instead of 0):
12 Answers
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Jump to matching XML tags in Vim
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answered Feb 1 '09 at 15:31
sykorasykora
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Which is faster: Stack allocation or Heap allocation
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501
Stack allocation is much faster since all it really does is move the stack pointer.
Using memo...
In Python, how do I split a string and keep the separators?
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answered Jan 25 '10 at 23:45
Commodore JaegerCommodore Jaeger
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PHP function to get the subdomain of a URL
...: Starting from PHP 5.4 you can simply do:
explode('.', 'en.example.com')[0];
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How to check if a String is numeric in Java
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708
With Apache Commons Lang 3.5 and above: NumberUtils.isCreatable or StringUtils.isNumeric.
With...