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How to determine a user's IP address in node
... Also, an x-forwarded-for header will not always be set which may throw an error.
The general format of the field is:
x-forwarded-for: client, proxy1, proxy2, proxy3
where the value is a comma+space separated list of IP addresses, the left-most being the original client, and each successive proxy...
How to allocate aligned memory only using the standard library?
...n successful completion, posix_memalign() shall return zero; otherwise, an error number shall be returned to indicate the error.
Either or both of these could be used to answer the question now, but only the POSIX function was an option when the question was originally answered.
Behind the scenes...
What is a “Stub”?
... allows assertions to be made in unit tests based on the data expected. If errors arise due to data errors, then tests can easily be added, a new stub created (replicating the data error) and code produced to correct the error.
Stubs differ to Mocks in that they are used to represent and test the s...
Turn a simple socket into an SSL socket
...
You will need to initialize OpenSSL:
void InitializeSSL()
{
SSL_load_error_strings();
SSL_library_init();
OpenSSL_add_all_algorithms();
}
void DestroySSL()
{
ERR_free_strings();
EVP_cleanup();
}
void ShutdownSSL()
{
SSL_shutdown(cSSL);
SSL_free(cSSL);
}
Now for the ...
if else in a list comprehension [duplicate]
...
The reason you're getting this error has to do with how the list comprehension is performed.
Keep in mind the following:
[ expression for item in list if conditional ]
Is equivalent to:
for item in list:
if conditional:
expression
Where ...
What's the key difference between HTML 4 and HTML 5?
...cy in Handling Malformed Documents
The primary one is consistent, defined error handling. As you know, HTML purposely supports 'tag soup', or the ability to write malformed code and have it corrected into a valid document. The problem is that the rules for doing this aren't written down anywhere....
Recursion in Angular directives
...
@MarkError and @dnc253 this is helpful, however I always receive the following error: [$compile:multidir] Multiple directives [tree, tree] asking for new/isolated scope on: <recursive tree="tree">
– Jac...
Why does MSBuild look in C:\ for Microsoft.Cpp.Default.props instead of c:\Program Files (x86)\MSBui
When I run msbuild to build a vc2010 project I get the following error:
20 Answers
20
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How to escape a JSON string containing newline characters using JavaScript?
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As noted in the answer by user667073, there are a few errors in this solution. See json.org - & and ' must not be escaped.
– Alexander Klimetschek
Nov 15 '11 at 22:07
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How to fix Hibernate LazyInitializationException: failed to lazily initialize a collection of roles,
... the list of authorities of the logged user, but I am facing the following error:
13 Answers
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