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Elements order in a “for (… in …)” loop
...doesn't do it in order?
The object I wish to use will be declared once and will never be modified.
9 Answers
...
Move capture in lambda
...ref( T && x )
{
return rref_impl<T>{ std::move(x) };
}
And here's a test case for that function that ran successfully on my gcc 4.7.3.
int main()
{
std::unique_ptr<int> p{new int(0)};
auto rref = make_rref( std::move(p) );
auto lambda =
[rref]() mutabl...
Are nested span tags OK in XHTML?
...
I know was just trying to create lol...and yes you "can" put block elements inside spans its not like the browser will explode or anything ...but its some you shouldn't do as a rule of thumb to follow proper web standards thats all.
– greater...
Using Razor within JavaScript
...ut JavaScript code. JavaScript code should be placed in a static .js file, and then it should get the data that it needs either from an Ajax call or by scanning data- attributes from the HTML. Besides making it possible to cache your JavaScript code, this also avoids issues with encoding, since Razo...
How to set commands output as a variable in a batch file
...
FOR /F "tokens=* USEBACKQ" %%F IN (`command`) DO (
SET var=%%F
)
ECHO %var%
I always use the USEBACKQ so that if you have a string to insert or a long file name, you can use your double quotes without screwing up the command.
Now if your output will contain mult...
How to manually trigger validation with jQuery validate?
...alidation for single elements. Just associate a click event to your button and try the following:
$("#myform").validate().element("#i1");
Examples here:
https://jqueryvalidation.org/Validator.element
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Android Fragments and animation
...Fragment Transaction.
Within each Fragment Transaction you can specify in and out animations that will be used for show and hide respectively (or both when replace is used).
The following code shows how you would replace a fragment by sliding out one fragment and sliding the other one in it's pla...
Git diff against a stash
...h show -p stash@{1}
From the git stash manpages:
By default, the command shows the diffstat, but it will accept any
format known to git diff (e.g., git stash show -p stash@{1} to view
the second most recent stash in patch form).
...
Configuring Log4j Loggers Programmatically
...ith
Logger.getRootLogger().getLoggerRepository().resetConfiguration();
and start with adding your own. You need log4j in the classpath of course for this to work.
Remark:
You can take any Logger.getLogger(...) you like to add appenders. I just took the root logger because it is at the bottom of...
搭建高可用mongodb集群（四）—— 分片 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
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从图中可以看到有四个组件：mongos、config server、shard、replica set。
mongos，数据库集群请求的入口，所有的请求都通过mongos进行协调，不需要在应用程序添加一个路由选择器，mongos自己就是一个请求分发中心，它负责把对应的数...