大约有 40,000 项符合查询结果（耗时：0.0515秒） [XML]
How do I sort a vector of pairs based on the second element of the pair?
...),myComparison);
Now you have to make the comparison based on the second selection
so declare you "myComparison" as
bool myComparison(const pair<int,int> &a,const pair<int,int> &b)
{
return a.second<b.second;
}
...
Set a default parameter value for a JavaScript function
...
@SiPlus and you got extra reference errors for free of charge while trying to use undefined objects :p Even while it may work with some browsers and might be faster, null is still an object and undefined is reference to primitive type that is trying to tell that there is nothing ...
Django templates: verbose version of a choice
...choices are stored in the variable CHOICES and the model field storing the selected choice is 'choices' then you can directly use
{{ x.get_choices_display }}
in your template. Here, x is the model instance.
Hope it helps.
...
Give all the permissions to a user on a DB
...%', ( -- use instead of EXECUTE to see generated commands
EXECUTE (
SELECT string_agg(format('GRANT USAGE ON SCHEMA %I TO my_user', nspname), '; ')
FROM pg_namespace
WHERE nspname <> 'information_schema' -- exclude information schema and ...
AND nspname NOT LIKE 'pg\_%' ...
How to generate the JPA entity Metamodel?
...EE Developers") has its own metamodel generator integrated with Eclipse.
Select your project in the Package Explorer
Go to Properties -> JPA dialog
Select source folder from Canonical metamodel (JPA 2.0) group
Click Apply button to generate metamodel classes in the selected source folder
Th...
Unresolved Import Issues with PyDev and Eclipse
... of the options but in vain. Then I tried the following which was great:
Select Project-> RightClick-> PyDev-> Remove PyDev Project Config
file-> restart
And I was using Python 2.7 as an interpreter, although it doesn’t effect, I think.
...
Iterate a list as pair (current, next) in Python
...ed to __slice__ on the list, which then returns a copy containing only the selected elements. One idiomatic way to copy a list is l_copy = l[:] (which I find ugly and unreadable -- prefer l_copy = list(l))
– dcrosta
Mar 25 '11 at 16:16
...
Why do some functions have underscores “__” before and after the function name?
...ml",
title = _("Title"),
data = self.application.db.query("select ... where object_id=%s", self.object_id)
)
...
share
|
improve this answer
|
follow
...
jQuery: checking if the value of a field is null (empty)
... be null, it's always a string value. this isn't entirely true. I've got a select containing no options. When I perform .val() on this it returns null. Jquery 1.7.2
– Liam
Jan 14 '13 at 11:07
...
Detect Browser Language in PHP
...
The problem with the selected answer above is that the user may have their first choice set as a language that's not in the case structure, but one of their other language choices are set. You should loop until you find a match.
This is a super ...