大约有 43,000 项符合查询结果（耗时：0.0579秒） [XML]
What is a elegant way in Ruby to tell if a variable is a Hash or an Array?
...
And, of course, you also leave out the brackets, so @som_var.is_a? Hash works too :)
– Gus Shortz
Mar 3 '13 at 3:51
...
android on Text Change Listener
I have a situation, where there are two fields. field1 and field2 . All I want
to do is empty field2 when field1 is changed and vice versa. So at the end only
one field has content on it.
...
Where does Xcode 4 store Scheme Data?
I'm just starting to use Xcode 4, and I'm trying to find the file in a project where it stores all of a project's Schemes. I figured they would be stored in a file in the xcodeproj directory somewhere, but for the life of me I can't find which one.
...
Hamcrest compare collections
...insensitive comparison, you can call the containsInAnyOrder varargs method and provide values directly:
assertThat(actual.getList(), containsInAnyOrder("item1", "item2"));
(Assuming that your list is of String, rather than Agent, for this example.)
If you really want to call that same method wit...
Why are Perl 5's function prototypes bad?
... that function calls are correct: that is, that they have the right number and type of arguments. Perl's prototypes are not well-suited for this task. It's the misuse that's bad. Perl's prototypes have a singular and very different purpose:
Prototypes allow you to define functions that behave like ...
Is there a way to loop through a table variable in TSQL without using a cursor?
... — set based operations will perform faster in every case I can think of and will normally use simpler code.
Depending on your data it may be possible to loop using just SELECT statements as shown below:
Declare @Id int
While (Select Count(*) From ATable Where Processed = 0) > 0
Begin
Se...
Get local IP address in node.js
I have a simple node.js program running on my machine and I want to get local IP address of PC on which my program is running. How do I get it with node.js?
...
“unrecognized import path” with go get
...
Just installed fresh golang 1.3 on fedora 20 and go get gives the same error. GOROOT is set to /usr, go itself installed into /usr, not /usr/local. Set GOPATH to $HOME/go. Any idea what else to check ?
– Dfr
Dec 2 '14 at 15:45
...
How to select the row with the maximum value in each group
... Accessing the auto-named column. Run it without it to understand better.
– Arun
Jun 1 '16 at 14:19
...
Memcache Vs. Memcached [duplicate]
Someone can explain me the difference between Memcache and Memcached in PHP environment?
What are the advantages of one over the other?
Can you also suggest the criteria used to choose between one or the other?
...