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What does “Object reference not set to an instance of an object” mean? [duplicate]
... AND for myPet.PetType == null
if ( myPet.PetType == "cat" ) <--- fall down go boom!
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Best GWT widget library? [closed]
...can implement anything basically. I used MyGwt but it sucks when they shut down the project and changed its name and all the forums and support, licence are changed
– Robert Childan
Nov 27 '09 at 0:11
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Access restriction: The type 'Application' is not API (restriction on required library rt.jar)
...library or might not be exported itself. In that case you can try to track down the missing packages and export them my yourself, as suggested here, or try Access Rules. Other possible scenarios include:
Eclipse wants to keep you from using available packages that are not part of the public Java A...
UDP vs TCP, how much faster is it? [closed]
...s, and an industry's worth of high-performance networking code doesn't lie down and die because you think its "moronic".
– Engineer
Dec 12 '11 at 14:24
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Reduce left and right margins in matplotlib plot
... need is
plt.tight_layout()
before your output.
In addition to cutting down the margins, this also tightly groups the space between any subplots:
x = [1,2,3]
y = [1,4,9]
import matplotlib.pyplot as plt
fig = plt.figure()
subplot1 = fig.add_subplot(121)
subplot1.plot(x,y)
subplot2 = fig.add_subp...
AWK: Access captured group from line pattern
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That was a stroll down memory lane...
I replaced awk by perl a long time ago.
Apparently the AWK regular expression engine does not capture its groups.
you might consider using something like :
perl -n -e'/test(\d+)/ && print $1'
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Lambda function in list comprehensions
...Wesen, I found out that this stuff is covered in the Python documentation: https://docs.python.org/3.4/faq/programming.html#why-do-lambdas-defined-in-a-loop-with-different-values-all-return-the-same-result - it deals with loops instead of list comprehensions, but the idea is the same - global or non...
Can I use jQuery with Node.js?
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one down side of jsdom's jQueryify() is that it runs all the page's scripts.
– drewish
Jan 30 '12 at 4:47
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Skip List vs. Binary Search Tree
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The Synchrobench code (including all algorithms tested) is available at: https://github.com/gramoli/synchrobench.
The latest Brown et al. implementation (not included in the above) is available at http://www.cs.toronto.edu/~tabrown/chromatic/ConcurrentChromaticTreeMap.java Does anyone have a 32+ c...
Creating a Radial Menu in CSS
...rm: scale(0.001);
/* for improved perf on transitioning transform
* https://twitter.com/paul_irish/status/608492121734193152
*/
will-change: transform;
opacity: .001;
-webkit-filter: drop-shadow(0 0.125em 0.25em #847c77);
filter: drop-shadow(0 0.125em 0.25em #847c77);
...