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Scala @ operator
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180
It enables one to bind a matched pattern to a variable. Consider the following, for instance:
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How to create a custom attribute in C#
...code.
/// </summary>
[DataMember]
[StringLengthValidator(8, RangeBoundaryType.Inclusive, 8, RangeBoundaryType.Inclusive, MessageTemplate = "\"{1}\" must always have \"{4}\" characters.")]
public string Code { get; set; }
From the snippet above, one might guess that the code w...
Get current stack trace in Ruby without raising an exception
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185
You can use Kernel#caller:
# /tmp/caller.rb
def foo
puts caller # Kernel#caller returns an...
CSS \9 in width property
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\9 is a "CSS hack" specific to Internet Explorer 7, 8, & 9.
This simply means that the one specific line of CSS ending with a \9; in place of the ; is only valid in IE 7, 8, & 9.
In your example,
width: 500px\9; means that a width of 500 pixels (same result as width...
Node.JS constant for platform-specific new line?
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Not sure if this is new in the 0.8.x but there is now a constant http://nodejs.org/api/os.html#os_os_eol
var endOfLine = require('os').EOL;
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Eclipse interface icons very small on high resolution screen in Windows 8.1
...e Eclipse (Kepler) interface are very, very small on a laptop with a 3200x1800px screen. The red error decoration that appears to indicate errors on files is difficult to see unless my nose a few cm from the screen.
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How to open the Chrome Developer Tools in a new window?
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community wiki
8 revs, 4 users 34%Kyle Hale
18
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What is the difference between UTF-8 and Unicode?
...e heard conflicting opinions from people - according to the Wikipedia UTF-8 page.
15 Answers
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How to sleep for five seconds in a batch file/cmd [duplicate]
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858
One hack is to (mis)use the ping command:
ping 127.0.0.1 -n 6 > nul
Explanation:
ping ...
promise already under evaluation: recursive default argument reference or earlier problems?
...on(x, T) {
10 * sin(0.3 * x) * sin(1.3 * x^2) + 0.001 * x^3 + 0.2 * x + 80
}
g <- function(x, T, f. = f) { ## 1. note f.
exp(-f.(x)/T)
}
test<- function(g. = g, T = 1) { ## 2. note g.
g.(1,T)
}
test()
## [1] 8.560335e-37
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