大约有 41,000 项符合查询结果（耗时：0.0693秒） [XML]
Very simple log4j2 XML configuration file using Console and File appender
...ize your logger
I did set the immediateFlush="false" since this is better for SSD lifetime. If you need the log right away in your log-file remove the parameter or set it to true
share
|
improve th...
Get css top value as number not as string?
...): You should give the radix too:
parseInt($('#elem').css('top'), 10);
Forces it to be parsed as a decimal number, otherwise strings beginning with '0' might be parsed as an octal number (might depend on the browser used).
...
How to have multiple data-bind attributes on one element?
I need to have multiple data bindings on one element. For example, I want a href as well as a html data-binding on one a tag. I have tried this,
...
Single vs Double quotes (' vs ")
I've always used single quotes when writing my HTML by hand. I work with a lot of rendered HTML which always uses double quotes. This allows me to determine if the HTML was written by hand or generated. Is this a good idea?
...
Extension methods cannot be dynamically dispatched
I want to have DropDownListFor in MVC
3 Answers
3
...
What is reflection and why is it useful?
...d to describe code which is able to inspect other code in the same system (or itself).
For example, say you have an object of an unknown type in Java, and you would like to call a 'doSomething' method on it if one exists. Java's static typing system isn't really designed to support this unless the ...
How can I create an error 404 in PHP?
My .htaccess redirects all requests to /word_here to /page.php?name=word_here . The PHP script then checks if the requested page is in its array of pages.
...
Finding row index containing maximum value using R
...
See ?order. You just need the last index (or first, in decreasing order), so this should do the trick:
order(matrix[,2],decreasing=T)[1]
share
...
rails 3 validation on uniqueness on multiple attributes
... I would have written:
validates_uniqueness_of :zipcode, :scope => :recorded_at
In Rails 3:
validates :zipcode, :uniqueness => {:scope => :recorded_at}
For multiple attributes:
validates :zipcode, :uniqueness => {:scope => [:recorded_at, :something_else]}
...
Accessing nested JavaScript objects and arays by string path
...
I just made this based on some similar code I already had, it appears to work:
Object.byString = function(o, s) {
s = s.replace(/\[(\w+)\]/g, '.$1'); // convert indexes to properties
s = s.replace(/^\./, ''); // strip a leading dot
var a = s.split('.');
for (var i = 0, n ...