大约有 35,549 项符合查询结果（耗时：0.0428秒） [XML]
`staticmethod` and `abc.abstractmethod`: Will it blend?
... |
edited Dec 17 '10 at 20:39
answered Dec 17 '10 at 20:26
...
Regex lookahead for 'not followed by' in grep
...
answered Feb 8 '12 at 18:08
Jonathan LefflerJonathan Leffler
641k111111 gold badges777777 silver badges11491149 bronze badges
...
What is the right way to override a setter method in Ruby on Rails?
...========================================================
Update: July 19, 2017
Now the Rails documentation is also suggesting to use super like this:
class Model < ActiveRecord::Base
def attribute_name=(value)
# custom actions
###
super(value)
end
end
=======================...
Psql list all tables
...
204
If you wish to list all tables, you must use:
\dt *.*
to indicate that you want all tables i...
How to align a div to the top of its parent but keeping its inline-block behaviour?
...
380
Try the vertical-align CSS property.
#box1 {
width: 50px;
height: 50px;
background:...
How to count certain elements in array?
...
Very simple:
var count = 0;
for(var i = 0; i < array.length; ++i){
if(array[i] == 2)
count++;
}
share
|
improve this answer
...
Copy values from one column to another in the same table
...t of rows:
UPDATE `products` SET `in_stock` = true WHERE `supplier_id` = 10
share
|
improve this answer
|
follow
|
...
Why does the lock object have to be static?
...
answered Feb 19 '11 at 20:01
Marc Gravell♦Marc Gravell
888k227227 gold badges23562356 silver badges27202720 bronze badges
...
How can I add a class attribute to an HTML element generated by MVC's HTML Helpers?
...
350
In order to create an anonymous type (or any type) with a property that has a reserved keyword a...
What is WCF RIA services?
...
109
RIA services is a server-side technology that automatically generates client-side (Silverlight)...