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What does ||= (or-equals) mean in Ruby?
...o often on the Ruby mailing-lists and Ruby blogs that there are now even threads on the Ruby mailing-list whose only purpose is to collect links to all the other threads on the Ruby mailing-list that discuss this issue.
Here's one: The definitive list of ||= (OR Equal) threads and pages
If you reall...
What's the difference between ViewData and ViewBag?
... heads-up Matthew Flaschen, I had a typo in the response and fixed it, now reads "ViewData" instead of ViewModel which was a mistake. :)
– Rich Bianco
Nov 20 '11 at 20:02
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How can I add an empty directory to a Git repository?
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I think the README solution proposed by @JohnMee should be used together with this one; the .gitignore file provides an explanation of what we want to keep out of version control, while the README file explains what is the purpose of the...
How to tell bash that the line continues on the next line
...‘\’ may be used to remove any special meaning
for the next character read and for line continuation.
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SQLAlchemy IN clause
...1 IN :values;
""")
query = query.bindparams(values=tuple(values))
df = pd.read_sql(query, engine)
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Show the progress of a Python multiprocessing pool imap_unordered call?
...inly wanted to document a stupid assumption I'd made - in case anyone else reading this made it too.
– simonmacmullen
Mar 25 '15 at 12:00
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SQL Server 2008: How to query all databases sizes?
...e names, sizes and also database statuses (e.g. ONLINE) in a nice, easy to read output:
SELECT
D.name,
F.Name AS FileType,
F.physical_name AS PhysicalFile,
F.state_desc AS OnlineStatus,
CAST(F.size AS bigint) * 8*1024 AS SizeInBytes,
CAST((F.size*8.0)/1024/1024 AS decimal(18...
How to run multiple Python versions on Windows
...ython 3.3 or newer there's no need to install it as it comes with Python already) and either add shebang lines to your scripts;
#! c:\[path to Python 2.5]\python.exe - for scripts you want to be run with Python 2.5
#! c:\[path to Python 2.6]\python.exe - for scripts you want to be run with Python ...
How to hide a in a menu with CSS?
...c) but Chrome and IE will and it will hide the option.
EDIT: Oh yeah, I already implemented this in jQuery:
jQuery.fn.toggleOption = function( show ) {
jQuery( this ).toggle( show );
if( show ) {
if( jQuery( this ).parent( 'span.toggleOption' ).length )
jQuery( this ).u...
Programmatically get height of navigation bar
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I read your question again, and I still didn't understand what you want to do? If you want to do something when the view appears, you should insert the code into viewDidAppear. If you clarify a bit, it would make it easier to f...