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What is the _snowman param in Ruby on Rails 3 forms for?
In Ruby on Rails 3 (currently using Beta 4), I see that when using the form_tag or form_for helpers there is a hidden field named _snowman with the value of ☃ ( Unicode \x9731) showing up.
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How assignment works with Python list slice?
...ce of a with the contents of b.
Although the syntax is similar (I imagine by design!), these are two different operations.
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Coloring white space in git-diff's output
...d in red, you can then change core.whitespace, but blank-at-eol is enabled by default so you probably won't need to change that for the example you mention.
A possible source of confusion is that in the output of git diff, whitespace errors are only highlighted in the lines that are introduced, not...
How can I count the number of matches for a regex?
...sets the matcher, and then sets the region to start at the index specified by the start parameter and end at the index specified by the end parameter. Try this. while(matcher.find()){ matcher.region(matcher.end()-1, str.length()); count++; }
– Mukesh Kumar Gupta
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What is the advantage of using async with MVC5?
...s using SynchronizationContext.Post. If it does, the overhead is dominated by the thread switch it performs as it resumes. That means that the current SynchronizationContext makes a big difference." (Async in C# 5.0, 2012, Alex Davies)
– annemartijn
Mar 22 '14 ...
What is http multipart request?
...onstruct to send files and data over to a HTTP Server. It is commonly used by browsers and HTTP clients to upload files to the server.
What it looks like
See Multipart Content-Type
See multipart/form-data
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What is the correct value for the disabled attribute?
... markup.
For HTML5, <input type="text" disabled /> is valid and used by W3C on their samples.
In fact, both ways works on all major browsers.
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Difference between FOR and AFTER triggers?
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Can't choose class as main class in IntelliJ
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Error in Swift class: Property not initialized at super.init call
...ignated initializer must ensure that all of the
“properties introduced by its class are initialized before it
delegates up to a superclass initializer.”
Excerpt From: Apple Inc. “The Swift Programming Language.” iBooks.
https://itunes.apple.com/us/book/swift-programming-language/i...