大约有 47,000 项符合查询结果（耗时：0.0619秒） [XML]
How do I use define_method to create class methods?
...
I prefer using send to call define_method, and I also like to create a metaclass method to access the metaclass:
class Object
def metaclass
class << self
self
end
end
end
class MyClass
# Defines MyClass.my_method
self.metaclass.send(:defi...
Make page to tell browser not to cache/preserve input values
...
I talk about checkboxes so I can't set value to "". And, does autocomplete off means not to store form input values "when user presses F5", not only "for dropdown autocompletion list"?
– queen3
Apr 23 '10 at 17:20
...
How do I run git log to see changes only for a specific branch?
...a local branch tracking the remote/master branch. After running git-pull and git-log , the log will show all commits in the remote tracking branch as well as the current branch. However, because there were so many changes made to the remote branch, I need to see just the commits made to the curre...
“SetPropertiesRule” warning message when starting Tomcat from Eclipse [duplicate]
... it did not work for me. What did work was completely deleting the server and creating a new one, adding the service to it after that. Smooth sailing afterwards. I guess it was a setting that I modified somewhere along the way...
– Asaf
Sep 19 '11 at 21:56
...
Force browser to clear cache
...
If this is about .css and .js changes, one way is to to "cache busting" is by appending something like "_versionNo" to the file name for each release. For example:
script_1.0.css // This is the URL for release 1.0
script_1.1.css // This is the...
Run PHP Task Asynchronously
I work on a somewhat large web application, and the backend is mostly in PHP. There are several places in the code where I need to complete some task, but I don't want to make the user wait for the result. For example, when creating a new account, I need to send them a welcome email. But when they h...
Measuring the distance between two coordinates in PHP
... have the need to calculate the distance between two points having the lat and long.
12 Answers
...
Circle-Rectangle collision detection (intersection)
How can I tell whether a circle and a rectangle intersect in 2D Euclidean space? (i.e. classic 2D geometry)
25 Answers
...
Remote debugging with Android emulator
Is it possible to write the code/compile Android application on one machine and debug it remotely on the emulator launched on another? I'm sick and tired of the emulator constantly eating half of my laptop's CPU.
...
Why would I ever use push_back instead of emplace_back?
...ush_back(x);
v.emplace_back(x);
After your optimizing compiler gets its hands on this, there is no difference between these two statements in terms of generated code. The traditional wisdom is that push_back will construct a temporary object, which will then get moved into v whereas emplace_back w...