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Shall we always use [unowned self] inside closure in Swift
...lifetimes anyway, and it's much simpler
and lower-overhead than the side-table based implementation used for
zeroing weak references.
Update: In modern Swift weak internally uses the same mechanism as unowned does. So this comparison is incorrect because it compares Objective-C weak with Swift...
JPA: How to have one-to-many relation of the same Entity type
...both). But this resulted in a duplicate row being inserted into my Address table. Is this because I have misconfigured my CascadeType on the User's address field?
– Alex
Aug 25 '13 at 12:17
...
C# Equivalent of SQL Server DataTypes
...
This is for SQL Server 2005. There are updated versions of the table for SQL Server 2008, SQL Server 2008 R2, SQL Server 2012 and SQL Server 2014.
SQL Server Data Types and Their .NET Framework Equivalents
The following table lists Microsoft SQL Server data types, their equivalents in ...
Difference between “!==” and “==!” [closed]
...
I fell under the same illusion of being able to use a <table>.
– Chad Harrison
Sep 7 '12 at 15:27
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Load data from txt with pandas
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Thanks! How can I access an element of the table?
– albus_c
Feb 4 '14 at 7:57
if you w...
Cause of a process being a deadlock victim
... another process doing updates and inserts into the same database and same tables. The first process has started, recently to end prematurely with a message
...
Why should the “PIMPL” idiom be used? [duplicate]
...rect me if I'm wrong, but the memory usage would just be an extra function table in RAM, a pointer to the pimpl and a redirecting function for each method in codespace. Painful for maintenance and debugging though.
– JeffV
Sep 16 '08 at 23:26
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How to show Page Loading div until the page has finished loading?
...load). You'd do something like this:
$(document).ready( function() {
$('table#with_slow_data').show();
$('div#loading image or text').hide();
});
Is “double hashing” a password less secure than just hashing it once?
...broken with a pre-computed dictionary attack (for example, using a Rainbow Table). Otherwise, the attacker must spend time to compute a hash for each password and see if it matches the stored hash.
All passwords are not equally likely. Attackers might exhaustively search all short passwords, but th...
How to delete all datastore in Google App Engine?
...n appengine) then datastore --> dataviewer, select all the rows for the table you want to delete and hit the delete button (you'll have to do this for all your tables).
You can do the same programmatically through the remote_api (but I never used it).
If you're talking about the development dat...