大约有 32,000 项符合查询结果（耗时：0.0474秒） [XML]
What is the default value for enum variable?
...
It is whatever member of the enumeration represents the value 0. Specifically, from the documentation:
The default value of an enum E is the value produced by the expression (E)0.
As an example, take the following enum:
enum E
{
Foo, Bar, Baz, Quux
}
Without overriding the default val...
Adding and removing style attribute from div with jquery
...
You could do any of the following
Set each style property individually:
$("#voltaic_holder").css("position", "relative");
Set multiple style properties at once:
$("#voltaic_holder").css({"position":"relative", "top":"-75px"});
Remove a specific style:
$("#voltaic_holder").css({"top":...
Rounding DateTime objects
...clear in your initial spec.
How you want boundary cases to round.
normally only an issue if you are rounding to the middle rather than the end.
Since rounding to the middle is an attempt at a bias free answer you need to use something like Bankers Rounding technically round half even to be trul...
Rails: Missing host to link to! Please provide :host parameter or set default_url_options[:host]
...default_url_options = { :host => "yourhost" }
That way, it can work in all environments and could be different from environment to environment. For example:
development.rb
config.action_mailer.default_url_options = { :host => "dev.yourhost.com" }
test.rb
config.action_mailer.default_url_...
Text editor to open big (giant, huge, large) text files [closed]
...Also support file following and regex search. Very fast, simple, and has small executable size.
klogg (Windows, macOS, Linux) – A maintained fork of glogg, its main feature is regular expression search. It can also watch files, allows the user to mark lines, and has serious optimizations built in....
Git production/staging server workflow
...y good concepts of branching and versioning.
– Edgar Alloro
Nov 21 '18 at 21:52
add a comment
|
...
How to create a windows service from java app
I've just inherited a java application that needs to be installed as a service on XP and vista. It's been about 8 years since I've used windows in any form and I've never had to create a service, let alone from something like a java app (I've got a jar for the app and a single dependency jar - log4j...
Getting an empty JQuery object
...tion about it, but I solved it by using PHP instead of jQuery so I can't really dig more into it right now.
– cregox
Mar 2 '11 at 19:02
2
...
Getting pids from ps -ef |grep keyword
...
pgrep -f keyword
From the man page:
-f The pattern is normally only matched against the process name. When -f is set, the full command line is used.
If you really want to avoid pgrep, try:
ps -ef | awk '/[k]eyword/{print $2}'
Note the [] around the first letter of the keywor...
Setting environment variables for accessing in PHP when using Apache
I have a Linux environment and I have a PHP Web Application that conditionally runs based on environment variables using getenv in PHP. I need to know how these environment variables need to be set for the application to work correctly. I am not sure how to set this up on Apache.
...