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What are the differences between a UIView and a CALayer?
...though you may not realize it. Unlike NSViews on the Mac, which evolved before Core Animation existed, UIViews are intended to be lightweight wrappers around these CALayers.
As I describe in the similar question "When to use CALayer on the Mac/iPhone?", working directly with CALayers doesn't give ...
Code for decoding/encoding a modified base64 URL
... Hmmm. In trying this out, it isn't doing the trick. Still looking for answers. The number of equal signs just isn't panning out properly.
– Kirk Liemohn
Aug 4 '09 at 19:31
...
Calling constructor from other constructor in same class
...int b)
{
this.A = a;
this.B = b;
}
If we change the evalution performed in the private constructor, slightly, we will see why constructor ordering is important:
private Test(bool a, int b)
{
// ... remember that this is called by the public constructor
// with `this(...`
if (...
Is Java RegEx case-insensitive?
In Java, when doing a replaceAll to look for a regex pattern like:
5 Answers
5
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What is the easiest way to push an element to the beginning of the array?
...
That's the one I was looking for, forgot the name.
– Ed S.
May 22 '11 at 1:50
1
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What are the differences between various threading synchronization options in C#?
...sion#2 of my orig answer.. with a little bit of more understanding. Thanks for making me read :)
lock(obj)
is a CLR construct that for (intra-object?) thread synchronization. Ensures that only one thread can take ownership of the object's lock & enter the locked block of code. Other threads ...
jQuery append() - return appended elements
...d that there is also another signature: appendTo(target, context). Such as for any jQuery selector it allows to search for target , BUT only inside a specific context. It can be very useful if you write plugins or libraries.
– Pierpaolo Cira
Dec 22 '16 at 13:32...
T-SQL get SELECTed value of stored procedure
...SelectedValue = GetMyInt @Param
PRINT @SelectedValue
this will only work for INTs, because RETURN can only return a single int value and nulls are converted to a zero.
OUTPUT PARAMETER
you can use an output parameter:
CREATE PROCEDURE GetMyInt
( @Param int
,@OutValue int OUTPUT)
AS
SELECT ...
Using [UIColor colorWithRed:green:blue:alpha:] doesn't work with UITableView seperatorColor?
...
also, the same works for hex values. as sometimes we get the colors as hex, in order to not calculate them by hand we can use: for example for #C94557 it would be: [UIColor colorWithRed:(CGFloat)0xC9/0xFF green:(CGFloat)0x45/0xFF blue:(CGFloat)0x...
Select something that has more/less than x character
...LECT EmployeeName FROM EmployeeTable WHERE LEN(EmployeeName) > 4
MSDN for it states:
Returns the number of characters of the specified string expression,
excluding trailing blanks.
Here's the link to the MSDN
For oracle/plsql you can use Length(), mysql also uses Length.
Here is the O...