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Accessing Object Memory Address
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The Python manual has this to say about id():
Return the "identity'' of an object.
This is an integer (or long integer)
which is guaranteed to be unique and
constant for this object during its
lifetime. Two objects with
non-overlapping lifetimes may h...
How do I plot in real-time in a while loop using matplotlib?
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Here's the working version of the code in question (requires at least version Matplotlib 1.1.0 from 2011-11-14):
import numpy as np
import matplotlib.pyplot as plt
plt.axis([0, 10, 0, 1])
for i in range(10):
y = np.random.random()
plt.scatter(i, y)
plt.pause(0.05)
plt.show...
How can I get Maven to stop attempting to check for updates for artifacts from a certain group from
...king on a fairly big Maven project. We have probably around 70 or so individual artifacts, which are roughly split into two libraries of shared code and maybe ten applications which use them. All of these items live in the namespace com.mycompany.* .
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Difference between Role and GrantedAuthority in Spring Security
...pressed as strings (with the getAuthority() method). Those strings let you identify the permissions and let your voters decide if they grant access to something.
You can grant different GrantedAuthoritys (permissions) to users by putting them into the security context. You normally do that by imple...
How do I sort an NSMutableArray with custom objects in it?
...sortedArray = [drinkDetails sortedArrayUsingComparator:^NSComparisonResult(id a, id b) {
NSDate *first = [(Person*)a birthDate];
NSDate *second = [(Person*)b birthDate];
return [first compare:second];
}];
Performance
The -compare: and block-based methods will be quite a bit faster, in...
How to get element by classname or id
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It may be worth noting that inside the link function, element.childElementCount may be 0 because angular hasn't had the chance to create the elements yet, so you should be prepared to deal with no results for element[0].getElement...
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What is the correct way to make a custom .NET Exception serializable?
...s", in the section on Designing Custom Exceptions, states: "Do provide (at least) these common constructors on all exceptions." See here: blogs.msdn.com/kcwalina/archive/2006/07/05/657268.aspx Only the (SerializationInfo info, StreamingContext context) constructor is needed for serialisation correc...
querySelector, wildcard element match?
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[id^='someId'] will match all ids starting with someId.
[id$='someId'] will match all ids ending with someId.
[id*='someId'] will match all ids containing someId.
If you're looking for the name attribute just substitute id ...
Rest with Express.js nested router
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You can nest routers by attaching them as middleware on an other router, with or without params.
You must pass {mergeParams: true} to the child router if you want to access the params from the parent router.
mergeParams was introduced in Express 4.5.0 (Jul 5 2014)...
How to exclude a module from a Maven reactor build?
...;
<modules>
...
<profiles>
<profile>
<id>expensive-modules-to-build</id>
<modules>
<module>data</module>
</modules>
</profile>
</profiles>
</project>
You should then check out ways you...