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Scoping in Python 'for' loops
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The likeliest answer is that it just keeps the grammar simple, hasn't been a stumbling block for adoption, and many have been happy with not having to disambiguate the scope to which a name belongs when assigning to it within a loop construct. Variables...
Word wrap for a label in Windows Forms
How can one get word wrap functionality for a Label for text which goes out of bounds?
17 Answers
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How can I make a .NET Windows Forms application that only runs in the System Tray?
...Run(new Form1()); line in Program.cs to instead start up a class that inherits from ApplicationContext, and have the constructor for that class initialize a NotifyIcon
static class Program
{
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAT...
jQuery.click() vs onClick
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Using $('#myDiv').click(function(){ is better as it follows standard event registration model. (jQuery internally uses addEventListener and attachEvent).
Basically registering an event in modern way is the unobtrusive way of handling events. Also to register more than one...
Java HashMap performance optimization / alternative
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As many people pointed out the hashCode() method was to blame. It was only generating around 20,000 codes for 26 million distinct objects. That is an average of 1,300 objects per hash bucket = very very bad. However if I turn the two arrays into a number in base 52 I am guaranteed to get...
Django: How to manage development and production settings?
I have been developing a basic app. Now at the deployment stage it has become clear I have need for both a local settings and production settings.
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brew install mysql on macOS
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I think one can end up in this position with older versions of mysql already installed. I had the same problem and none of the above solutions worked for me. I fixed it thus:
Used brew's remove & cleanup commands, unloaded the launchctl script, then dele...
Creating runnable JAR with Gradle
...il now I created runnable JAR files via the Eclipse "Export..." functionallity but now I switched to IntelliJ IDEA and Gradle for build automation.
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How does C compute sin() and other math functions?
...e that actually runs when you call sin() on a typical x86-64 Linux system. It is apparently faster than the fsin assembly instruction. Source code: sysdeps/ieee754/dbl-64/s_sin.c, look for __sin (double x).
This code is very complex. No one software algorithm is as fast as possible and also accurat...
Row count with PDO
...ber_of_rows = $result->fetchColumn();
Not the most elegant way to do it, plus it involves an extra query.
PDO has PDOStatement::rowCount(), which apparently does not work in MySql. What a pain.
From the PDO Doc:
For most databases,
PDOStatement::rowCount() does not
return the number ...