大约有 47,000 项符合查询结果（耗时：0.0709秒） [XML]
Regular Expression to match string starting with “stop”
...to match any word beginning with "stop" and containing nothing but letters from A to Z.
\bstop[a-zA-Z]*\b
This would match all
stop (1)
stop random (2)
stopping (3)
want to stop (4)
please stop (5)
But
/^stop[a-zA-Z]*/
would only match (1) until (3), but not (4) &...
Convert string to integer type in Go?
I'm trying to convert a string returned from flag.Arg(n) to an int . What is the idiomatic way to do this in Go?
5 Answe...
Xcode 6 / Beta 4: using bridging headers with framework targets is unsupported
...states, bridging headers are not allowed in Frameworks. The Importing Code from Within the Same Framework Target section of the Mix & Match apple documentation hints at this. As they say, you need to "In your umbrella header file, import every Objective-C header you want to expose to Swift".
H...
Is there a Mutex in Java?
...erations than can be obtained using synchronized methods and statements.", from: docs.oracle.com/javase/7/docs/api/java/util/concurrent/locks/… ...although you have a point. Argv's answer doesn't illustrate or explain these operations.
– FrustratedWithFormsDesigner
...
Get value of a string after last slash in JavaScript
...([^/]*) at the end of the string ($). Then it grabs the matched characters from the returned match object by indexing into it ([0]); in a match object, the first entry is the whole matched string. No need for capture groups.
Live example
Using lastIndexOf and substring:
var str = "foo/bar/test.ht...
Difference between getDefaultSharedPreferences and getSharedPreferences
...edPreferences in fact uses Context.getSharedPreferences (below is directly from the Android source):
public static SharedPreferences getDefaultSharedPreferences(Context context) {
return context.getSharedPreferences(getDefaultSharedPreferencesName(context),
getDefaultSharedPreferencesMo...
jquery ui Dialog: cannot call methods on dialog prior to initialization
...ser in the jquery library which was deprecated in jquery 1.8.3 and removed from jquery 1.9.1. So bascially, the jquery 1.9.1 library was not compatible with the jquery ui 1.9.0 library despite the jquery ui download page saying it works with jquery 1.6+. Essentially, there are unreported bugs when t...
Why do we usually use || over |? What is the difference?
... If you add in about possible null reference exception using | from @Jeremy's comment then this is great answer.
– Peter Kelly
Aug 18 '11 at 7:55
...
How can I send an inner to the bottom of its parent ?
...t out of place, this one isolates the object you want to put at the bottom from the rest. Great solution!
– Alejandro Aristizábal
Apr 7 at 21:19
add a comment
...
How to override to_json in Rails?
... the one you have encountered. The creation of the json should be separate from the rendering of the json.
Now, anytime to_json is called on an object, as_json is invoked to create the data structure, and then that hash is encoded as a JSON string using ActiveSupport::json.encode. This happens for ...