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How can I append a string to an existing field in MySQL?
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You need to use the CONCAT() function in MySQL for string concatenation:
UPDATE categories SET code = CONCAT(code, '_standard') WHERE id = 1;
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How do you receive a url parameter with a spring controller mapping
This issue seems trivial, but I can't get it to work properly. I'm calling my Spring controller mapping with jquery ajax. The value for someAttr is always empty string regardless of the value in the url. Please help me determine why.
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How to change the default font size in ggplot2
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Very useful! In case anyone is interested, the default text size is 11 (theme_gray()$text$size)
– Keith Hughitt
Jul 11 '16 at 21:28
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what does npm -D flag mean?
... answered Jan 30 at 2:23
oabarcaoabarca
8,66655 gold badges4747 silver badges6262 bronze badges
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Javadoc: package.html or package-info.java
...e tech.puredanger.com link was the only one to really explain why I should care. That said, it's a good, helpful link.
– Roboprog
Jul 11 '12 at 21:29
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Browser support for URLs beginning with double slash
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If you are developing on a local machine there's possibility it will fail with src="file://host.com/filename".
In this situation you need to specify scheme explicitly: http://host.com/filename or https://host.com/filename.
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C# DateTime to UTC Time without changing the time
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6/1/2011 4:08:40 PM Local
6/1/2011 4:08:40 PM Utc
from
DateTime dt = DateTime.Now;
Console.WriteLine("{0} {1}", dt, dt.Kind);
DateTime ut = DateTime.SpecifyKind(dt, DateTimeKind.Utc);
Console.WriteLine("{0} {1}", ut, ut.Kind);
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How to download a single commit-diff from GitHub?
I would like to get a single commit (let's call it ${SHA} ) from GitHub via the web-interface.
2 Answers
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Regex - Does not contain certain Characters
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^[^<>]+$
The caret in the character class ([^) means match anything but, so this means, beginning of string, then one or more of anything except < and >, then the end of the string.
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@media media query and ASP.NET MVC razor syntax clash
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use double @@ symbols. That will escape @ symbol and render @media correctly on client side
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