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Should I use single or double colon notation for pseudo-elements?
...a special meaning to the comma (,) in selectors. However, since it is not known if the comma may acquire other meanings in future updates of CSS, the whole statement should be ignored if there is an error anywhere in the selector, even though the rest of the selector may look reasonable in CSS 2.1. ...
Rails: Default sort order for a rails model?
...atenating them with periods between them, so with the above scopes you can now use Book.published.confirmed.
With this method, the query is not actually executed until actual results are needed (lazy evaluation), so 7 scopes could be chained together but only resulting in 1 actual database query,...
Is there any difference between a GUID and a UUID?
...m Resource Name namespace for UUIDs (Universally Unique IDentifier), also known as GUIDs (Globally Unique IDentifier)."
From the ITU-T Recommendation X.667, ISO/IEC 9834-8:2004 International Standard: "UUIDs are also known as Globally Unique Identifiers (GUIDs), but this term is not used in this Re...
Display lines number in Stack Trace for .NET assembly in Release mode
...
My solution
Copy pdb file in same folder that executable file.
now i can view the line number when run the exe file.
this is reason
http://msdn.microsoft.com/en-us/library/ee416588%28v=vs.85%29.aspx
share
...
jQuery .data() does not work, but .attr() does
...nt .data() calls could do some basic checks() like whether the value empty now or string length changed (matching the cache with current value)
– minhajul
Nov 6 '15 at 2:52
1
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Query EC2 tags from within instance
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The ec2metadata tool is deprecated. Now you query the 'magic' URL at 169.254.169.254/latest/meta-data - hit it with cURL and it gives you magic endpoints you can use to get various bits of data. In this case curl http://169.254.169.254/latest/meta-data/instance...
In Python, how do I iterate over a dictionary in sorted key order?
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You can now use OrderedDict in Python 2.7 as well:
>>> from collections import OrderedDict
>>> d = OrderedDict([('first', 1),
... ('second', 2),
... ('third', 3)])
>>> d.i...
Is it possible to simulate key press events programmatically?
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It seems that this feature has been removed by now. MDN has considered it deprecated for quite a while, though.
– Tacticus
Dec 10 '16 at 19:30
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A clean, lightweight alternative to Python's twisted? [closed]
...applications. I wouldn't confuse bloat with comprehensiveness.
It's well known that the Twisted documentation isn't the most user-friendly from first glance, and I believe this turns away an unfortunate number of people. But Twisted is amazing (IMHO) if you put in the time. I did and it proved to ...
How do I execute inserts and updates in an Alembic upgrade script?
... teams[player.team_name]
session.commit()
# don't need team name now that team relationship is set
op.drop_column('players', 'team')
def downgrade():
bind = op.get_bind()
session = orm.Session(bind=bind)
# re-add the players.team column
op.add_column('players', sa.Co...