大约有 40,000 项符合查询结果（耗时：0.0637秒） [XML]
What's the state of the art in email validation for Rails?
...del:
class TestUser
include Mongoid::Document
field :email, type: String
validates :email, email: true
end
Your validator (goes in app/validators/email_validator.rb)
class EmailValidator < ActiveModel::EachValidator
EMAIL_ADDRESS_QTEXT = Regexp.new '[^\\x0d\\x22\\x5c\\x8...
In jQuery, how do I get the value of a radio button when they all have the same name?
...
@PavanAlapati We cannot really tell you why without seeing your HTML as well; ideally, you would post a new question with your exact HTML snippet and the code you are using. You should only get undefined though, if: The name in the selector does not m...
How do I get the currently displayed fragment?
...tManager().getBackStackEntryCount() == 0) {
return null;
}
String tag = getSupportFragmentManager().getBackStackEntryAt(getSupportFragmentManager().getBackStackEntryCount() - 1).getName();
return (BaseFragment) getSupportFragmentManager().findFragmentByTag(tag);
}
...
How do I find the location of Python module sources?
How do I learn where the source file for a given Python module is installed? Is the method different on Windows than on Linux?
...
SPAN vs DIV (inline-block)
...turn and have default margin.
Note that inline-block is not supported in all browsers. For instance in Firefox 2 and less you must use:
display: -moz-inline-stack;
which displays slightly different than an inline block element in FF3.
There is a great article here on creating cross browser inl...
Java to Clojure rewrite
... lines of Java
Update: Since this post was originally written a couple of extra tools/libraries have emerged that are in the "must check out" category:
Noir - web framework that builds on top of Ring.
Korma - a very nice DSL for accessing SQL databases.
...
How to divide flask app into multiple py files?
...c resources: templates or static files. Please refer to the Flask docs for all the details.
share
|
improve this answer
|
follow
|
...
How do I achieve the theoretical maximum of 4 FLOPs per cycle?
... while (i < 1000){
// Here's the meat - the part that really matters.
r0 = _mm_mul_pd(r0,rC);
r1 = _mm_add_pd(r1,rD);
r2 = _mm_mul_pd(r2,rE);
r3 = _mm_sub_pd(r3,rF);
r4 = _mm_mul_pd(r4,rC);
r5 = _mm_add_pd(r5...
How to recover stashed uncommitted changes
...d for easy re-try of the apply, or for looking at, etc. If pop is able to extract the stash, it will immediately also drop it, and if you the suddenly realize that you wanted to extract it somewhere else (in a different branch), or with --index, or some such, that's not so easy. If you apply, you ...
What is a tracking branch?
...anch sf will automatically push to and pull from origin/serverfix.
BONUS: extra git status info
With a tracking branch, git status will tell you whether how far behind your tracking branch you are - useful to remind you that you haven't pushed your changes yet! It looks like this:
$ git status
O...