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Method can be made static, but should it?
...After [marking members as static], the compiler will emit non-virtual call sites to these members which will prevent a check at
runtime for each call that ensures the current object pointer is
non-null. This can result in a measurable performance gain for
performance-sensitive code. In some ca...
How to track down log4net problems
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Just a note I found the fun way. Make sure the <configSections></configSections> is the first entry under <configuration>. Otherwise you end up with an error.
– Nick
Jul 25 '17 at 13:59
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How to convert a data frame column to numeric type?
... you want to convert to numeric. I suggest that you should apply transform function in order to complete your task.
Now I'm about to demonstrate certain "conversion anomaly":
# create dummy data.frame
d <- data.frame(char = letters[1:5],
fake_char = as.character(1:5),
...
What is the difference between 'my' and 'our' in Perl?
...ariables. You can see that in the following program: package Foo; our $x = 123; package Bar; say $x;. If you want to "declare" a package variable, you need to use use vars qw( $x );. our $x; declares a lexically-scoped variable that is aliased to the same-named variable in the package in which the o...
method overloading vs optional parameter in C# 4.0 [duplicate]
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The fact that the CALLING site has to have the defaults injected is definitely an issue for a public API. If only we could get an optional parameter variant that is actually syntactic sugar for creating the overloads (while still keeping the existing...
StringUtils 字符串工具扩展：强大的文本处理工具集 · App Inventor 2 中文网
...本填充
// 左填充到10位
设置 StringUtils1.Text 为 "123"
设置 Label1.Text 为 调用 StringUtils1.LeftPad(10, "0")
// 结果: "0000000123"
// 居中对齐
设置 StringUtils1.Text 为 "Hi"
设置 Label2.Text 为 调用 StringUtils1.Center(10, "*")
// 结果: "****Hi****"
...
How are multi-dimensional arrays formatted in memory?
...but that is a different thing.
– too honest for this site
Nov 18 '16 at 18:40
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show 1 more comment
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How do you increase the max number of concurrent connections in Apache?
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Please advise: the site linked is currently serving malware (and porn)... It's probably hacked... Quite anoying if you are at work searching for a solution on stackoverflow and a full blown porn site opens... sitecheck.sucuri.net/results/www.ge...
Where and how is the _ViewStart.cshtml layout file linked?
...le to
programmatically set the Layout property for each View to be the
SiteLayout.cshtml file by default:
Because this code executes at the start of each View, we no longer
need to explicitly set the Layout in any of our individual view files
(except if we wanted to override the default...
Why does Chrome incorrectly determine page is in a different language and offer to translate?
... such as lang
attributes.
They recommend you make it obvious what your site's language is.
Use the following which seems to help although Content-Language is deprecated and Google says they ignore lang
<html lang="en" xml:lang="en" xmlns= "http://www.w3.org/1999/xhtml">
<meta charset="...