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Rails: Default sort order for a rails model?
...l's excellent answer above.
For Rails 4.0+ you need to put your sort in a block like this:
class Book < ActiveRecord::Base
default_scope { order('created_at DESC') }
end
Notice that the order statement is placed in a block denoted by the curly braces.
They changed it because it was too eas...
Why does !{}[true] evaluate to true in JavaScript?
...
I believe that's because plain {}[true] is parsed as an empty statement block (not an object literal) followed by an array containing true, which is true.
On the other hand, applying the ! operator makes the parser interpret {} as an object literal, so the following {}[true] becomes a member acc...
How to get the return value from a thread in python?
...:
import time
x = x + 5
time.sleep(5)
return x
# does not block, returns Thread object
y = long_task(10)
print y
# this blocks, waiting for the result
result = y.result_queue.get()
print result
The decorated function creates a new thread each time it's called and returns a Thread...
Difference between variable declaration syntaxes in Javascript (including global variables)?
...ect.
The binding is created before any step-by-step code in its enclosing block is executed (in this case, before any global code runs), but it's not accessible in any way until the step-by-step execution reaches the let statement. Once execution reaches the let statement, the variable is accessibl...
How do I get a div to float to the bottom of its container?
... so that its bottom lines up with the bottom of the last line of text of a block (or page) with text flowing around the inset in a natural manner above and to the right or left depending on which side of the page the inset is on. In html/css it is trivial to use the float style to line up the top of...
Are nested HTML comments possible?
... like LUA allow it. ==[[ and ==[1[ are the start of two separate comment blocks. I see no reason why someday HTML couldn't do the same thing.
– john ktejik
Nov 7 '14 at 19:28
...
MemoryCache does not obey memory limits in configuration
... the modification of @woany and I think there are some critical calls that block the cleaning of the memory cache.
public void CacheItemRemoved(CacheEntryRemovedArguments Args)
{
// this WriteLine() will block the thread of
// the MemoryCache long enough to slow it down,
// and it will ...
What is the “realm” in basic authentication
I'm setting up basic authentication on a php site and found this page on the php manual showing the set up. What does "realm" mean here in the header?
...
With CSS, use “…” for overflowed block of multi-lines
with
16 Answers
16
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Multiple line code example in Javadoc comment
...t:
Set<String> s;
System.out.println(s);
While omitting the @code block (or using a <code> tag) will result in HTML like this:
Set s;
System.out.println(s);
(For reference, Java SE 8 tag descriptions can be found here: Javadoc Tags)
...