大约有 40,000 项符合查询结果（耗时：0.0525秒） [XML]
How do I detect if I am in release or debug mode?
... DEBUG to true, it should work. If you are seeing this in one of the 1.3.0 test releases, or if you have a reproducible test case for 1.2.2, please file an issue. I do not see any outstanding issues reporting this problem.
– CommonsWare
Jul 12 '15 at 23:39
...
Test if a variable is a list or tuple
In python, what's the best way to test if a variable contains a list or a tuple? (ie. a collection)
13 Answers
...
How do I check in JavaScript if a value exists at a certain array index?
Will this work for testing whether a value at position index exists or not, or is there a better way:
18 Answers
...
Rails Object to hash
... @post.as_json
puts hash.pretty_inspect
Will output :
{
:name => "test",
:post_number => 20,
:active => true
}
To go a bit further, you could override that method in order to customize the way your attributes appear, by doing something like this :
class Post < ActiveRecord::...
How to access a preexisting collection with Mongoose?
I have a large collection of 300 question objects in a database test . I can interact with this collection easily through MongoDB's interactive shell; however, when I try to get the collection through Mongoose in an express.js application I get an empty array.
...
What integer hash function are good that accepts an integer hash key?
...turn x;
}
The magic number was calculated using a special multi-threaded test program that ran for many hours, which calculates the avalanche effect (the number of output bits that change if a single input bit is changed; should be nearly 16 on average), independence of output bit changes (output ...
Why doesn't list have safe “get” method like dictionary?
...titem__(index)
except IndexError:
return default
def _test():
l = safelist(range(10))
print l.get(20, "oops")
if __name__ == "__main__":
_test()
share
|
improve th...
How do I get the size of a java.sql.ResultSet?
...n the statement is created with the scroll insensitive option: ps=conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);
– BullyWiiPlaza
Feb 21 '17 at 13:55
...
How do I migrate a model out of one django app and into a new one?
...
Not doing this might make tests fail too (they always seem to run full south migrations when creating their test database). I've done something similar before. Good catch Ihor :)
– odinho - Velmont
Oct 8 '14 at 1...
How can I exclude all “permission denied” messages from “find”?
...ly")
Works with: find (GNU findutils) 4.4.2.
Background:
The -readable test matches readable files. The ! operator returns true, when test is false. And ! -readable matches not readable directories (&files).
The -prune action does not descend into directory.
! -readable -prune can be transla...