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How to express infinity in Ruby?
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If you use ruby 1.9.2, you can use:
>> Float::INFINITY #=> Infinity
>> 3 < Float::INFINITY #=> true
Or you can create your own constant using the following*:
I've checked that in Ruby 1.8.6, 1.8.7, and 1.9.2 you have Float.infin...
Regex not operator
...o, there's no direct not operator. At least not the way you hope for.
You can use a zero-width negative lookahead, however:
\((?!2001)[0-9a-zA-z _\.\-:]*\)
The (?!...) part means "only match if the text following (hence: lookahead) this doesn't (hence: negative) match this. But it doesn't actual...
Redirect from asp.net web api post action
I'm very new to ASP.NET 4.0 Web API. Can we redirect to another URL at the end of the POST action?, something like ... Response.Redirect(url)
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Google Map API V3: How to add Custom data to markers
Is there a way I can add some custom information to my markers for later use. There are ways to have an info-window and a title, but what If I want to associate the marker with other information.
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Track the time a command takes in UNIX/LINUX?
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As far as I can tell, this is default. This was the case on the CentOS 6, CentOS 7 and Debian 8 systems I checked: user@host:~$ which time /usr/bin/time Looks to be version 1.7 of GNU time.
– Toby
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Split string based on regex
...s the best way to split a string like "HELLO there HOW are YOU" by upper case words (in Python)?
3 Answers
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How do I configure Notepad++ to use spaces instead of tabs?
...version 6.5.5 right now, and the "Help Contents" menu option brings up a local copy of the doc site. Visiting Tuxfamily site returns a 404.
– Samir
Apr 22 '14 at 9:22
5
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Calculate difference between two datetimes in MySQL
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USE TIMESTAMPDIFF MySQL function. For example, you can use:
SELECT TIMESTAMPDIFF(SECOND, '2012-06-06 13:13:55', '2012-06-06 15:20:18')
In your case, the third parameter of TIMSTAMPDIFF function would be the current login time (NOW()). Second parameter would be the last log...
JavaScript: empty array, [ ] evaluates to true in conditional structures. Why is this?
I was encountering a lot of bugs in my code because I expected this expression:
2 Answers
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Selecting multiple classes with jQuery
I’ve had a good look and can’t seem to find out how to select all elements matching certain classes in one jQuery selector statement such as this:
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