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PDO Prepared Inserts multiple rows in single query
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$pdo->beginTransaction(); // also helps speed up your inserts.
$insert_values = array();
foreach($data as $d){
$question_marks[] = '(' . placeholders('?', sizeof($d)) . ')';
$insert_values = array_merge($insert_values, array_values($d));
}
$sql = "INSERT INTO table (" . implode(",", $...
Fixed size queue which automatically dequeues old values upon new enques
...T> : IReadOnlyCollection<T>
{
private readonly Queue<T> _queue = new Queue<T>();
private readonly object _lock = new object();
public int Count { get { lock (_lock) { return _queue.Count; } } }
public int Limit { get; }
public FixedSizedQueue(int limit)
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What is __init__.py for?
What is __init__.py for in a Python source directory?
12 Answers
12
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Getting key with maximum value in dictionary?
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@oba2311 max_value = max(stats.values()); {key for key, value in stats.items() if value == max_value}
– A. Coady
Apr 4 '17 at 0:37
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How to fix “Attempted relative import in non-package” even with __init__.py
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Yes. You're not using it as a package.
python -m pkg.tests.core_test
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What is the worst gotcha in C# or .NET? [closed]
...efixes for your private fields (there are others, but this is a good one): _myVar, m_myVar
– jrista
Jun 26 '09 at 8:01
205
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Undefined reference to `pow' and `floor'
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You can also use LD_PRELOAD to tell ld runtime linker to include libm.so in the memory map and symbol table of the process, so these symbols get loaded and everything works as expected
– debuti
May 28 '18 ...
How do I pass a method as a parameter in Python
...thodToRun()
return result
obj.method2(obj.method1)
Note: I believe a __call__() method does exist, i.e. you could technically do methodToRun.__call__(), but you probably should never do so explicitly. __call__() is meant to be implemented, not to be invoked from your own code.
If you wanted me...
Checking a Python module version at runtime
...rmation for the module (usually something like module.VERSION or module.__version__ ), however some do not.
7 Answers
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How does Trello access the user's clipboard?
...urn
if document.selection?.createRange().text
return
_.defer =>
$clipboardContainer = $("#clipboard-container")
$clipboardContainer.empty().show()
$("<textarea id='clipboard'></textarea>")
.val(@value)
.appendTo($clipboardC...