大约有 15,000 项符合查询结果（耗时：0.0262秒） [XML]
Extract part of a regex match
...
Note that starting Python 3.8, and the introduction of assignment expressions (PEP 572) (:= operator), it's possible to improve a bit on Krzysztof Krasoń's solution by capturing the match result directly within the if condition as a v...
in javascript, how can i get the last character in a string [duplicate]
...
It does it:
myString.substr(-1);
This returns a substring of myString starting at one character from the end: the last character.
This also works:
myString.charAt(myString.length-1);
And this too:
myString.slice(-1);
...
Cocoapods setup stuck on pod setup command on terminal
...
and for me quitting this process was the quickest way to start the pod process once it was stuck on "Updating local specs repositories" on pod install
– Ammar Mujeeb
Sep 18 '15 at 4:38
...
Ruby on Rails: How can I revert a migration with rake db:migrate?
... to other new programmers)
rake db:rollback works about half the time. I start there.
If not, rake db:migrate:down VERSION=3846656238
plug in VERSION for the version number of your migration file you want to revert.
sh...
Most used parts of Boost [closed]
...se, it'll still be a while before I can depend on it... I was just able to start using C++11 on a project last year. :-(
– Head Geek
Mar 26 '16 at 13:32
...
Real World Use of Zookeeper [closed]
...ally a fault-tolerant discovery service.
Every time a service instance is started Norbert registers it as available instance of a particular service type. From implementation perspective, it creates two Zookeeper trees:
"/ServiceName/members" which lists all known instances of the service
"/Serv...
how to programmatically fake a touch event to a UIButton?
...sses, etc. fairly easily, though the documentation (especially the getting-started part) is a bit sparse.
share
|
improve this answer
|
follow
|
...
How to create a HTTP server in Android? [closed]
...ServerSocket.
If you only need a server while your activity is on the top, starting and stopping ServerSocket thread can be rather elegantly tied to the activity life cycle methods. Also, if the server has multiple users, it may be good to service requests in the forked threads. If there is only one...
Make Bootstrap Popover Appear/Disappear on Hover instead of Click
...overs
$('.thumbcontainer').not(_this).popover('hide');
// start new timeout to show popover
counter = setTimeout(function(){
if($(_this).is(':hover'))
{
$(_this).popover("show");
}
$(".popover").on("mouseleave",...
Linux日志管理Rsyslog入门 - C/C++ - 清泛网移动版 - 专注C/C++及内核技术
...了先关闭它：
shell> service syslog stop
shell> service rsyslog start
如果运行Rsyslog时出现问题，那么可以通过激活调试模式来查找原因：
shell> cat /etc/sysconfig/rsyslog
# Options for rsyslogd
# Syslogd options are deprecated since rsyslog v3.
# If you wa...