I'm making a program in which I need to get the time in milliseconds. By time, I mean a number that is never equal to itself, and is always 1000 numbers bigger than it was a second ago. I've tried converting DateTime.Now to a TimeSpan and getting the TotalMilliseconds from that... but I've hea...

I need a cross platform method of determining the MAC address of a computer at run time. For windows the 'wmi' module can be used and the only method under Linux I could find was to run ifconfig and run a regex across its output. I don't like using a package that only works on one OS, and parsing ...

I have a hidden file input element. Is it possible to trigger its select file dialog box from a button's click event? 13 ...

How do I set global configuration for RSpec in Ubuntu. 6 Answers 6 ...

I've found this, How to put labels over geom_bar in R with ggplot2 , but it just put labels(numbers) over only one bar. 2...

...条目，等等。使用否定式前瞻 正则表达式中有前瞻（Lookahead）和后顾（Lookbehind）的概念，这两个术语非常形象的描述了正则引擎的匹配行为。需要注意一点，正则表达式中的前和后和我们一般理解的前后有点不同。一段文本，...

I heard you should define sizes and distances in your stylesheet with em instead of in pixels. So the question is why should I use em instead of px when defining styles in css? Is there a good example that illustrates this? ...

My basic understanding is that there is no implementation for a pure virtual function, however, I was told there might be implementation for pure virtual function. ...

How to remove spaces in a string? For instance: 7 Answers 7 ...

I see this error only after upgrading my PHP environment to PHP 5.4 and beyond. The error points to this line of code: 16 A...