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MySQL “Group By” and “Order By”
...umns used to work in practice but should not be relied upon. Per the MySQL documentation "this is useful primarily when all values in each nonaggregated column not named in the GROUP BY are the same for each group. The server is free to choose any value from each group, so unless they are the same, ...
How do Third-Party “tracking cookies” work?
I have read this question here:
How Do Internet Advertisers Use Third-Party Cookies?
on how third-party tracking cookies work, but am still very confused.
I don't understand how if I visit Website A (a normal website with ads) how Website B (an advertising website) can assign my computer an ID, a...
Hashing a string with Sha256
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Encoding.Unicode is Microsoft's misleading name for UTF-16 (a double-wide encoding, used in the Windows world for historical reasons but not used by anyone else). http://msdn.microsoft.com/en-us/library/system.text.encoding.unicode.aspx
If you inspect your bytes array, you'll see that ...
What is the difference between `git merge` and `git merge --no-ff`?
... branch pointer to point at the incoming commit. This commonly occurs when doing a git pull without any local changes.
However, occasionally you want to prevent this behavior from happening, typically because you want to maintain a specific branch topology (e.g. you're merging in a topic branch and...
How do I determine the current operating system with Node.js
...ell scripts for use when developing on a platform. We have both Mac and Windows developers. Is there a variable I can check for in Node to run a .sh file in one instance and .bat in another?
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Entity Framework is Too Slow. What are my options? [closed]
I have followed the "Don't Optimize Prematurely" mantra and coded up my WCF Service using Entity Framework.
13 Answers
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How do I access this object property with an illegal name?
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<?php
$x = new StdClass();
$x->{'todo-list'} = 'fred';
var_dump($x);
So, $object->{'todo-list'} is the sub-object. If you can set it like that, then you can also read it the same way:
echo $x->{'todo-list'};
Another possibility:
$todolist = 'todo-list...
Converting an array of objects to ActiveRecord::Relation
...nvert an Array of objects to an ActiveRecord::Relation? Preferably without doing a where each time.
You cannot convert an Array to an ActiveRecord::Relation since a Relation is just a builder for a SQL query and its methods do not operate on actual data.
However, if what you want is a relation th...
How do I use $scope.$watch and $scope.$apply in AngularJS?
I don't understand how to use $scope.$watch and $scope.$apply . The official documentation isn't helpful.
6 Answers
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Changing the status bar text color in splash screen iOS 7
...UIStatusBarStyle). Then ignore all the possible values listed in the drop down for this property and type UIStatusBarStyleLightContent instead.
And you don't have to set UIViewControllerBasedStatusBarAppearanceto NOin your plist, you can set the preferredStatusBarStyle you want to your view contro...