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What do the plus and minus signs mean in Objective-C next to a method?
...lly Apple's code.
@interface NSArray : NSObject {
}
+ (NSArray *)array;
- (id)objectAtIndex:(NSUInteger)index;
@end
// somewhere else:
id myArray = [NSArray array]; // see how the message is sent to NSArray?
id obj = [myArray objectAtIndex:4]; // here the message is sent to myArray
// B...
Search of table names
...
The only thing it normally hides are the database diagram support tables, or is there only one. It's more useful when looking for functions/procedures.
– RichardTheKiwi
Oct 26 '12 at 13:23
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Django Forms: if not valid, show form with error message
I Django forms, it can check whether the form is valid:
7 Answers
7
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How to make an input type=button act like a hyperlink and redirect using a get request? [duplicate]
...
There are several different ways to do that -- first, simply put it inside a form that points to where you want it to go:
<form action="/my/link/location" method="get">
<input type="submit" value="Go to my link location"
name="Submit" id="frm1_submit" />
</...
Laravel - Route::resource vs Route::controller
...aseController {
public function index() {}
public function show($id) {}
public function store() {}
}
You can also choose what actions are included or excluded like this:
Route::resource('users', 'UsersController', [
'only' => ['index', 'show']
]);
Route::resource('monkeys'...
Add unique constraint to combination of two columns
...LECT column1, column2, ... FROM inserted;
END
ELSE
BEGIN
PRINT 'Did nothing.';
END
END
GO
But if you don't tell the user they didn't perform the insert, they're going to wonder why the data isn't there and no exception was reported.
EDIT here is an example that does exactly what you...
AngularJS - $anchorScroll smooth/duration
...s encouraged.
To scroll to an element you attach a ng-click="gotoElement(ID)" to any element. I think an even better route would be to make this a directive.
Here's the working example on jsFiddle.
Update
There are now a number of third-party directives for accomplishing this.
https://github...
What is the difference between visibility:hidden and display:none?
The CSS rules visibility:hidden and display:none both result in the element not being visible. Are these synonyms?
18 A...
How to find elements with 'value=x'?
...').filter(function(){return this.value=='123'}).remove();
demo http://jsfiddle.net/gaby/RcwXh/2/
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How to 'bulk update' with Django?
...at:
This won't use ModelClass.save method (so if you have some logic inside it won't be triggered).
No django signals will be emitted.
You can't perform an .update() on a sliced QuerySet, it must be on an original QuerySet so you'll need to lean on the .filter() and .exclude() methods.
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