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What are sessions? How do they work?
...nd then I tell them my passcode: GNASHEU329
"Certainly Mr Banks!"
That basically is how a session works. It allows one to be uniquely identified in a sea of millions of people. You need to identify yourself every time you deal with the teller.
If you got any questions or are unclear - please post co...
Executing elements inserted with .innerHTML
...tElementById(id).innerHTML = text;
var scripts = Array.prototype.slice.call(document.getElementById(id).getElementsByTagName("script"));
for (var i = 0; i < scripts.length; i++) {
if (scripts[i].src != "") {
var tag = document.createElement("script");
tag.s...
Android: How to enable/disable option menu item on button click?
...me
Once the activity is created, the
onCreateOptionsMenu() method is called
only once, as described above. The
system keeps and re-uses the Menu you
define in this method until your
activity is destroyed. If you want to
change the Options Menu any time after
it's first created, you...
Can I bind an array to an IN() condition?
... interesting solution, and while I prefer it to iterating over the ids and calling PDO::quote(), I think the index of the '?' placeholders is going to get messed up if any other placeholders occure elsewhere in the query first, right?
– Andru
May 28 '09 at 12:4...
Display a view from another controller in ASP.NET MVC
...he view, it checks in \Views\Shared.
The shared directory is there specifically to share Views across multiple controllers. Just add your View to the Shared subdirectory and you're good to go.
If you do return View("~/Views/Wherever/SomeDir/MyView.aspx") You can return any View you'd like.
...
How can I make a JPA OneToOne relation lazy
...
For persist, it's just an extra persist call, for delete, you can usd DDL cascade.
– Vlad Mihalcea
May 20 at 5:53
add a comment
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Is it possible to make the -init method private in Objective-C?
...ou're trying to "ensure" a singleton object is used, don't bother. Specifically, don't bother with the "override +allocWithZone:, -init, -retain, -release" method of creating singletons. It's virtually always unnecessary and is just adding complication for no real significant advantage.
Instead, ...
Why is it important to override GetHashCode when Equals method is overridden?
...not match, they may never be considered equal (Equals will simply never be called).
The GetHashCode() method should reflect the Equals logic; the rules are:
if two things are equal (Equals(...) == true) then they must return the same value for GetHashCode()
if the GetHashCode() is equal, it is no...
Implementing IDisposable correctly
...ould have any unmanaged resources to be freed you should include Finalizer calling Dispose(false), that will allow GC to call Finalizer when doing garbage collection (in case Dispose was not called yet) and properly free unmanaged resources.
– mariozski
May 17 ...
PostgreSQL function for last inserted ID
...
( tl;dr : goto option 3: INSERT with RETURNING )
Recall that in postgresql there is no "id" concept for tables, just sequences (which are typically but not necessarily used as default values for surrogate primary keys, with the SERIAL pseudo-type).
If you are interested in ...