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Pushing read-only GUI properties back into ViewModel
... var frameworkElement = (FrameworkElement)dependencyObject;
if ((bool)e.NewValue)
{
frameworkElement.SizeChanged += OnFrameworkElementSizeChanged;
UpdateObservedSizesForFrameworkElement(frameworkElement);
}
else
{
fra...
How can I format a number into a string with leading zeros?
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if you use string.Format("D2", value) you'll get D2 in the output. this doesn't work. We must use "{0:00}" in this case.
– v.oddou
Aug 7 '15 at 7:22
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Is there an opposite of include? for Ruby Arrays?
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if @players.exclude?(p.name)
...
end
ActiveSupport adds the exclude? method to Array, Hash, and String. This is not pure Ruby, but is used by a LOT of rubyists.
Source: Active Support Core Extensions (Rails Guides)
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What algorithms compute directions from point A to point B on a map?
...on the routing algorithm... yes, Dijkstra's does work, with a couple of modifications:
Instead of doing Dijkstra's once from source to dest, you start at each end, and expand both sides until they meet in the middle. This eliminates roughly half the work (2*pi*(r/2)^2 vs pi*r^2).
To avoid explorin...
Changing the color of an hr element
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I think you should use border-color instead of color, if your intention is to change the color of the line produced by <hr> tag.
Although, it has been pointed in comments that, if you change the size of your line, border will still be as wide as you specified in styles, a...
Read input from console in Ruby?
...ernel.gets tries to read the params found in ARGV and only asks to console if not ARGV found. To force to read from console even if ARGV is not empty use STDIN.gets
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Printing leading 0's in C?
...padding with and the 5 shows the length of the integer number. For example if you use "%02d" (Useful for dates) this would only pad zeros for numbers in the ones column ie.(06 instead of 6). Example 2, "%03d" would pad 2 zeros for one number in the ones column and pad 1 zero for a number in the ten...
MVC3 Razor: Displaying html within code blocks
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You could use @: to escape:
@if(Model.foo)
{
@:Hello World
}
or the special <text> tag which is not outputted in the response:
@if(Model.foo)
{
<text>Hello World</text>
}
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What's the most appropriate HTTP status code for an “item not found” error page
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404 errors are somewhat ambiguous for differentiating a bad URI versus entity not found. A new standard code is needed to disambiguate 404s.
– Breakskater
Mar 7 '19 at 16:45
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Maximum length for MD5 input/output
What is the maximum length of the string that can have md5 hashed? Or: If it has no limit, and if so what will be the max length of the md5 output value?
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