大约有 41,000 项符合查询结果（耗时：0.0513秒） [XML]
Email Address Validation in Android on EditText [duplicate]
How can we perform Email Validation on edittext in android ? I have gone through google & SO but I didn't find out a simple way to validate it.
...
How to horizontally center a
How can I horizontally center a <div> within another <div> using CSS?
112 Answers
...
When should I use Debug.Assert()?
I've been a professional software engineer for about a year now, having graduated with a CS degree. I've known about assertions for a while in C++ and C, but had no idea they existed in C# and .NET at all until recently.
...
What does git push -u mean?
...om, e.g. your GitHub repo. The -u option automatically sets that upstream for you, linking your repo to a central one. That way, in the future, Git "knows" where you want to push to and where you want to pull from, so you can use git pull or git push without arguments. A little bit down, this articl...
Yes or No confirm box using jQuery
...
is this jquery-ui or plain old jquery? I don't see .dialog() anywhere on jQuery's documentaiton.
– chovy
Oct 8 '12 at 6:38
...
Can you delete multiple branches in one command with Git?
I'd like to clean up my local repository, which has a ton of old branches: for example 3.2 , 3.2.1 , 3.2.2 , etc.
29 Ans...
What is the purpose of “!” and “?” at the end of method names?
...
It's "just sugarcoating" for readability, but they do have common meanings:
Methods ending in ! perform some permanent or potentially dangerous change; for example:
Enumerable#sort returns a sorted version of the object while Enumerable#sort! sorts...
logger configuration to log to file and print to stdout
...m using Python's logging module to log some debug strings to a file which works pretty well. Now in addition, I'd like to use this module to also print the strings out to stdout. How do I do this? In order to log my strings to a file I use following code:
...
How do I declare a namespace in JavaScript?
...
The important point is to be religious about expanding no further than the one root variable. Everything must flow from this.
– annakata
May 19 '09 at 8:54
...
How can jQuery deferred be used?
...che = {};
function getData( val ){
// return either the cached value or jqXHR object wrapped Promise
return $.when(
cache[ val ] ||
$.ajax('/foo/', {
data: { value: val },
dataType: 'json',
success: function( resp ){
cach...