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PHP: How to use array_filter() to filter array keys?
...in strings.
You can also use ARRAY_FILTER_USE_BOTH to have both the value and the key passed to your filter function. Here's a contrived example based upon the first, but note that I'd not recommend encoding filtering rules using $allowed this way:
$my_array = ['foo' => 1, 'bar' => 'baz', 'h...
What are static factory methods?
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if i understand correct, can you add availableConnections.add(db) to method returnDbConnection(DbConnection db)?
– Haifeng Zhang
May 6 '14 at 17:19
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Which access modifiers are implied when not specified?
...ublic. Only transpiling will throw errors. Both public and private will be converted to <Object>.prototype.funcName
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Error 'LINK : fatal error LNK1123: failure during conversion to COFF: file invalid or corrupt' after
... If that's the first one in your path, and the linker decides it needs to convert a .res file to COFF object format, the link will fail with LNK1123.
(Really annoying that the error message has nothing to do with the actual problem, but that's not unusual for a Microsoft product.)
Just delete/ren...
Multiline strings in JSON
...working because they're not escaping the backslash, as "\\n", so Python is converting the escape sequence to a newline character rather than leaving it as literally a backslash followed by an en, as JSON requires.
– user359996
Jan 30 '13 at 21:57
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How was the first compiler written?
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What wrote the first compiler that converted something into binary instructions?
A human did. Read about the A-0 system:
In 1952, Grace Hopper completed her first compiler for Sperry, known as the A-0. The A-0 System was a set of instructions that could ...
Checkbox for nullable boolean
..., "Female" },
{ "U", "Undecided" },
};
//Convert the Dictionary Type into a SelectListItem Type
Sexsli = SexDict.Select(k =>
new SelectListItem
{
Selected = (k.Key == "U"),
Text = k.Value,
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What is stack unwinding?
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Stack unwinding is usually talked about in connection with exception handling. Here's an example:
void func( int x )
{
char* pleak = new char[1024]; // might be lost => memory leak
std::string s( "hello world" ); // will be properly destructed
if ( x ) throw std::runtime_error(...
Why do objects of the same class have access to each other's private data?
...specification, which is why it even has its own dedicated chapter in the standard (11.5). But still any per-object features described there are rather rudimentary. Again, access control in C++ is meant to work on per-class basis.
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Comparing mongoose _id and strings
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converting object id to string(using toString() method) will do the job.
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