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How to pip or easy_install tkinter on Windows
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Well I can see two solutions here:
1) Follow the Docs-Tkinter install for Python (for Windows):
Tkinter (and, since Python 3.1, ttk) are included with all standard Python distributions. It is important that you use a version of Python supporting Tk 8.5 or greater, and ttk. We recommend instal...
How to TryParse for Enum value?
...oned by Lisa and Christian in the comments, Enum.TryParse is now available for C# in .NET4 and up.
MSDN Docs
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How to prevent a background process from being stopped after closing SSH client in Linux
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What if I need to provide some input? For example, I have a long-running script that I need to run in the background but it first asks for my FTP password. nohup doesn't help in this case. Is there a way to fiddle with Ctrl+Z / bg?
– Sergey
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How to map and remove nil values in Ruby
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Ruby 2.7+
There is now!
Ruby 2.7 is introducing filter_map for this exact purpose. It's idiomatic and performant, and I'd expect it to become the norm very soon.
For example:
numbers = [1, 2, 5, 8, 10, 13]
enum.filter_map { |i| i * 2 if i.even? }
# => [4, 16, 20]
In your case,...
When to use symbols instead of strings in Ruby?
... rule of thumb is to use symbols every time you need internal identifiers. For Ruby < 2.2 only use symbols when they aren't generated dynamically, to avoid memory leaks.
Full answer
The only reason not to use them for identifiers that are generated dynamically is because of memory concerns.
Th...
How to bind an enum to a combobox control in WPF?
...it from code by placing the following code in Window Loaded event handler, for example:
yourComboBox.ItemsSource = Enum.GetValues(typeof(EffectStyle)).Cast<EffectStyle>();
If you need to bind it in XAML you need to use ObjectDataProvider to create object available as binding source:
<Wi...
Is it bad practice to have a constructor function return a Promise?
I'm trying to create a constructor for a blogging platform and it has many async operations going on inside. These range from grabbing the posts from directories, parsing them, sending them through template engines, etc.
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Initializing a static std::map in C++
...at C++ library would be "standard enough". Boost is the standard companion for the C++ coder.
– DevSolar
Jan 5 '12 at 13:04
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MongoDB with redis
...s and MongoDB can be used together with good results. A company well-known for running MongoDB and Redis (along with MySQL and Sphinx) is Craiglist. See this presentation from Jeremy Zawodny.
MongoDB is interesting for persistent, document oriented, data indexed in various ways. Redis is more inter...
Can I use a min-height for table, tr or td?
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height for td works like min-height:
td {
height: 100px;
}
instead of
td {
min-height: 100px;
}
Table cells will grow when the content does not fit.
https://jsfiddle.net/qz70zps4/
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