大约有 48,000 项符合查询结果（耗时：0.0466秒） [XML]
Join/Where with LINQ and Lambda
...'re familiar with SQL syntax, using the LINQ query syntax is much clearer, more natural, and makes it easier to spot errors:
var id = 1;
var query =
from post in database.Posts
join meta in database.Post_Metas on post.ID equals meta.Post_ID
where post.ID == id
select new { Post = post, ...
Is there a way to get rid of accents and convert a whole string to regular letters?
...r.normalize(string, Normalizer.Form.NFD);
// or Normalizer.Form.NFKD for a more "compatable" deconstruction
This will separate all of the accent marks from the characters. Then, you just need to compare each character against being a letter and throw out the ones that aren't.
string = string.re...
What does the exclamation mark do before the function?
....
So what the author is doing is saving a byte per function expression; a more readable way of writing it would be this:
(function(){})();
Lastly, ! makes the expression return true. This is because by default all IIFE return undefined, which leaves us with !undefined which is true. Not particul...
What is attr_accessor in Ruby?
... the instance variables in the attr_* statement? It seems that it would be more straight forward to use the same '@' syntax that is used elsewhere in the class to refer to the variable.
– Will
May 24 '12 at 18:34
...
Which version of PostgreSQL am I running?
...
|
show 5 more comments
562
...
Maximum and Minimum values for ints
...bits in a word will be math.log2(sys.maxsize * 2 + 2). See this answer for more information.
Python 2
In Python 2, the maximum value for plain int values is available as sys.maxint:
>>> sys.maxint
9223372036854775807
You can calculate the minimum value with -sys.maxint - 1 as shown her...
In Django, how does one filter a QuerySet with dynamic field lookups?
...
|
show 8 more comments
6
...
When should one use final for method parameters and local variables?
...s "righter". I wish it was the default. But it isn't and I find the code more difficult to understand with finals all over. If I'm in someone else's code, I'm not going to pull them out but if I'm writing new code I won't put them in. One exception is the case where you have to mark something fi...
What's the point of the X-Requested-With header?
...redirect step. It appears it also worked on Chrome, but is now remediated. More details here including different versions affected.
OWASP Recommend combining this with an Origin and Referer check:
This defense technique is specifically discussed in section 4.3 of
Robust Defenses for Cross-Sit...
Use RSA private key to generate public key?
...tracted from the private key file, not calculated. See my answer below for more details.
– golem
Jun 4 '17 at 17:27
|
show 12 more comments
...