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Is there an “exists” function for jQuery?
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2520
In JavaScript, everything is 'truthy' or 'falsy', and for numbers 0 means false, everything else...
How do I make a simple makefile for gcc on Linux?
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edited Nov 27 '10 at 2:14
answered Sep 28 '09 at 0:12
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MySQL: how to get the difference between two timestamps in seconds
...and the TIME_TO_SEC() functions as follows:
SELECT TIME_TO_SEC(TIMEDIFF('2010-08-20 12:01:00', '2010-08-20 12:00:00')) diff;
+------+
| diff |
+------+
| 60 |
+------+
1 row in set (0.00 sec)
You could also use the UNIX_TIMESTAMP() function as @Amber suggested in an other answer:
SELECT UNIX_T...
Different results with Java's digest versus external utilities
...file. I am using Windows 7 Professional with SP1 . I have tried Java 6.0.29 and Java 7.0.03 . Can someone tell me why I am getting different hash values from Java versus (many!) external utilities and/or websites? Everything external matches with each other, only Java is returning different ...
Python Flask Intentional Empty Response
... HTTP server must return something. The HTTP 'empty response' response is 204 No Content:
return ('', 204)
Note that returning a file to the browser is not an empty response, just different from a HTML response.
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Replace one character with another in Bash
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405
Use inline shell string replacement. Example:
foo=" "
# replace first blank only
bar=${foo/ ...
Prevent wrapping of span or div
...white-space: nowrap;
}
.slide {
display: inline-block;
width: 600px;
white-space: normal;
}
<div class="slideContainer">
<span class="slide">Some content</span>
<span class="slide">More content. Lorem ipsum dolor sit amet, consectetur adipisicing ...
How to make execution pause, sleep, wait for X seconds in R?
...ible
}
testit(3.7)
Yielding
> testit(3.7)
user system elapsed
0.000 0.000 3.704
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Dynamically adding properties to an ExpandoObject
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505
dynamic x = new ExpandoObject();
x.NewProp = string.Empty;
Alternatively:
var x = new Expand...
How to escape quote marks in Exec Command in MSBuild
...mmand attribute value :
<Exec Command="net use x: &quot;\\ofmapoly703\c$\program files\ar\iap&quot; /user:$(UserID) $(Password)"
WorkingDirectory="c:\"
ContinueOnError="false"
/>
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