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How do I count the number of occurrences of a char in a String?
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The loop method is much faster than this. Especially when wanting to count a char instead of a String (since there is no String.replace(char, char) method). On a 15 character string, I get a difference of 6049 ns vs 26,739 ns (averaged over 100runs). Raw numbers are huge...
How to hide “Showing 1 of N Entries” with the dataTables.js library
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This is a better answer than mine, if all you want to do is hide it. If you need to style it, its nice that Allan has wrapped each element in it's own class so you can get at it.
– Daiku
Oct 18 '13 at 11:54
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Pretty print in MongoDB shell as default
...y, everything is output to a single line and it's difficult to read, especially with nested arrays and documents.
8 Answers...
CMake unable to determine linker language with C++
...d (according to the documentation), but it wasn't helpful to me:
Optionally you can specify which languages your project supports.
Example languages are CXX (i.e. C++), C, Fortran, etc. By default C
and CXX are enabled. E.g. if you do not have a C++ compiler, you can
disable the check for ...
App Inventor 2 PopupMenu与列表选择器自定义教程 · App Inventor 2 中文网
...{
// 动态设置选项
var 动态列表 = 微数据库1.GetValue("menu_items", [])
列表选择器1.Elements = 动态列表
}
when 列表选择器1.AfterPicking {
标签_结果.Text = "你选择了：" + 列表选择器1.Selection
}
动态文字
ListPicker的元...
What does the CSS rule “clear: both” do?
... be explaining how the floats work here (in detail), as this question generally focuses on Why use clear: both; OR what does clear: both; exactly do...
I'll keep this answer simple, and to the point, and will explain to you graphically why clear: both; is required or what it does...
Generally desi...
log4j configuration via JVM argument(s)?
...g4j.configuration={path to file}
If the file is NOT in the classpath (in WEB-INF/classes in case of Tomcat) but somewhere on you disk, use file:, like
-Dlog4j.configuration=file:C:\Users\me\log4j.xml
More information and examples here: http://logging.apache.org/log4j/1.2/manual.html
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投票App · App Inventor 2 中文网
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Program only crashes as release build — how to debug?
I've got a "Schroedinger's Cat" type of problem here -- my program (actually the test suite for my program, but a program nonetheless) is crashing, but only when built in release mode, and only when launched from the command line. Through caveman debugging (ie, nasty printf() messages all over the ...
How do I enable EF migrations for multiple contexts to separate databases?
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The 2nd call to Enable-Migrations is failing because the Configuration.cs file already exists. If you rename that class and file, you should be able to run that 2nd Enable-Migrations, which will create another Configuration.cs.
You ...