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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.
c...
“Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP
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Notice: Undefined variable
From the vast wisdom of the PHP Manual:
Relying on the default value of an uninitialized variable is problematic in the case of including one file into another which uses the same variable name. It is also a major se...
What characters are forbidden in Windows and Linux directory names?
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A “comprehensive guide” of forbidden filename characters is not going to work on Windows because it reserves filenames as well as characters. Yes, characters like
* " ? and others are forbidden, but there are a infinite number of names composed only of va...
Rebase a single Git commit
Is there a way to rebase a single commit from a branch onto another branch?
5 Answers
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How do I use Node.js Crypto to create a HMAC-SHA1 hash?
I want to create a hash of I love cupcakes (signed with the key abcdeg )
3 Answers
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Error: Can't set headers after they are sent to the client
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The res object in Express is a subclass of Node.js's http.ServerResponse (read the http.js source). You are allowed to call res.setHeader(name, value) as often as you want until you call res.writeHead(statusCode). After writeHead, the...
Custom Adapter for List View
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public class ListAdapter extends ArrayAdapter<Item> {
private int resourceLayout;
private Context mContext;
public ListAdapter(Context context, int resource, List<Item> items) {
super(context, ...
iOS app error - Can't add self as subview
I received this crash report, but I don't know how to debug it.
19 Answers
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Initial bytes incorrect after Java AES/CBC decryption
...g this work due to missing some information like, forgetting to convert to Base64, initialization vectors, character set, etc. So I thought of making a fully functional code.
Hope this will be useful to you all:
To compile you need additional Apache Commons Codec jar, which is available here:
http:...
How is a tag different from a branch in Git? Which should I use, here?
I am having some difficulty understanding how to use tags versus branches in git .
12 Answers
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