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What is a “slug” in Django?
...odels what is called a "slug". I am not quite sure what this is, but I do know it has something to do with URLs. How and when is this slug-thing supposed to be used?
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Boost智能指针——shared_ptr - C/C++ - 清泛网 - 专注C/C++及内核技术
...ptr<implementation> sp1(new implementation());
std::cout<<"The Sample now has "<<sp1.use_count()<<" references\n";
boost::shared_ptr<implementation> sp2 = sp1;
std::cout<<"The Sample now has "<<sp2.use_count()<<" references\n";
sp1.reset();
std::cout<<"After Reset sp...
What are JavaScript's builtin strings?
...presentation of build-in methods might look differently in other browsers.
Now, moving to the real problem, let's precisely have a look at the code. Yes, "v" was the real "problem" here. I found no other ways of getting this letter except parsing [native code] string, which can be taken from any bui...
What is the most compatible way to install python modules on a Mac?
...d and there are some details not covered in other answers:
Most people I know use HomeBrew or MacPorts, I prefer MacPorts because of its clean cut of what is a default Mac OS X environment and my development setup. Just move out your /opt folder and test your packages with a normal user Python envi...
C++ display stack trace on exception
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And archive.org doesn't know it, either. Damn. Well, the procedure should be clear: throw a custom class' object that records the stack trace at the time of the throw.
– Thomas Tempelmann
May 20 '15 at 21:21
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What does “var FOO = FOO || {}” (assign a variable or an empty object to that variable) mean in Java
...times. If the <script> tags have the defer attribute set you can't know in which order they'll be interpreted, so as described above this fixes that problem too.
share
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What do the return values of node.js process.memoryUsage() stand for?
...dicated to storing reference types like objects, strings and closures.
Now it is easy to answer the question:
rss: Resident Set Size
heapTotal: Total Size of the Heap
heapUsed: Heap actually Used
Ref: http://apmblog.dynatrace.com/2015/11/04/understanding-garbage-collection-and-hunting-memory...
Can a foreign key be NULL and/or duplicate?
...inition. Null by definition is not a value. Null means that we do not yet know what the value is.
Let me give you a real life example. Suppose you have a database that stores sales proposals. Suppose further that each proposal only has one sales person assigned and one client. So your proposal tab...
How to use unicode characters in Windows command line?
...3 of my keyboard layout (mentioned above) was missing some support files. Now fixed! (Judging by my .log files, it is an intermittent bug in zip -ru [?!]. Have no clue how to debug it — or avoid in the future…)
– Ilya Zakharevich
Sep 20 '18 at 2:50
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Build project into a JAR automatically in Eclipse
...ct where I want to keep my Java project built into a JAR automatically. I know I have an option to export the project into a JAR; if I do a right click; but what I am really looking for is, that like Eclipse automatically builds a project's .class files and put them in target folder; it should als...