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Locking pattern for proper use of .NET MemoryCache
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This is my 2nd iteration of the code. Because MemoryCache is thread safe you don't need to lock on the initial read, you can just read and if the cache returns null then do the lock check to see if you need to create the string. It greatly simplifies the code.
const string...
How to use Git?
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Have a look at git for designers for great one page article/high level intro to the topic. (That link is broken: Here is a link to another Git for Designers )
I would start at http://git-scm.com/documentation, there are documents and great vid...
How to iterate over a JavaScript object?
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For most objects, use for .. in :
for (let key in yourobject) {
console.log(key, yourobject[key]);
}
With ES6, if you need both keys and values simultaneously, do
for (let [key, value] of Object.entries(yourobject)) {
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Unable to load config info from /usr/local/ssl/openssl.cnf on Windows
...allation versions (as seen in a previous edit of this post). Also, don't forget to add the openssl binary folder ${env:ProgramFiles}\OpenSSL to your Path.
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The purpose of Model View Projection Matrix
For what purposes are we using Model View Projection Matrix?
Why do shaders require Model View Projection Matrix?
2 Answers...
Why would you ever implement finalize()?
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You could use it as a backstop for an object holding an external resource (socket, file, etc). Implement a close() method and document that it needs to be called.
Implement finalize() to do the close() processing if you detect it hasn't been done. Maybe w...
Expanding tuples into arguments
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myfun(*some_tuple) does exactly what you request. The * operator simply unpacks the tuple (or any iterable) and passes them as the positional arguments to the function. Read more about unpacking arguments.
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ObjectiveC Parse Integer from String
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Just for us noobs out there coming from other languages, [myStringContainingInt intValue]; can also be written like myStringContainingInt.intValue;
– ToddBFisher
Jan 29 '12 at 6:14
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Simulating ENTER keypress in bash script
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echo -ne '\n' | <yourfinecommandhere>
or taking advantage of the implicit newline that echo generates (thanks Marcin)
echo | <yourfinecommandhere>
Now we can simply use the --sk option:
--sk, --skip-keypress Don't wait for a keypress after each test
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Overriding the java equals() method - not working?
...nherited from Object is:
public boolean equals(Object other);
In other words, the parameter must be of type Object. This is called overriding; your method public boolean equals(Book other) does what is called overloading to the equals() method.
The ArrayList uses overridden equals() methods to c...