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SQL how to make null values come last when sorting ascending
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select MyDate
from MyTable
order by case when MyDate is null then 1 else 0 end, MyDate
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improve this answer
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How do I test which class an object is in Objective-C?
...objective-c runtime api:
#import <objc/runtime.h>
/* ... */
const char* className = class_getName([yourObject class]);
NSLog(@"yourObject is a: %s", className);
EDIT: In Swift
if touch.view is UIPickerView {
// touch.view is of type UIPickerView
}
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iphone: Where the .dSYM file is located in crash report
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You can locate .dSYM and application binary file in archive.
Select Window -> Organizer
This will open up Organizer window containing last created Archive of project
Right click on Archive and select 'Show in Finder'
Select 'Show Package Content' for archive
Project.xcarchive...
How to compare two colors for similarity/difference
...For posterity, here's the relevant C code:
typedef struct {
unsigned char r, g, b;
} RGB;
double ColourDistance(RGB e1, RGB e2)
{
long rmean = ( (long)e1.r + (long)e2.r ) / 2;
long r = (long)e1.r - (long)e2.r;
long g = (long)e1.g - (long)e2.g;
long b = (long)e1.b - (long)e2.b;...
How to use range-based for() loop with std::map?
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If copy assignment operator of foo and bar is cheap (eg. int, char, pointer etc), you can do the following:
foo f; bar b;
BOOST_FOREACH(boost::tie(f,b),testing)
{
cout << "Foo is " << f << " Bar is " << b;
}
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How do I pass the value (not the reference) of a JS variable to a function? [duplicate]
...sults[i];
google.maps.event.addListener(marker, 'click', () => change_selection(i));
}
In older browsers, you need to create a separate scope that saves the variable in its current state by passing it as a function parameter:
for (var i = 0; i < results.length; i++) {
(function (i) {...
Is there a “previous sibling” selector?
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No, there is no "previous sibling" selector.
On a related note, ~ is for general successor sibling (meaning the element comes after this one, but not necessarily immediately after) and is a CSS3 selector. + is for next sibling and is CSS2.1.
See Adjacent sib...
Can Android Studio be used to run standard Java projects?
...id Studio. If you do not have one, create one.
Click File > New Module. Select Java Library and click Next.
Fill in the package name, etc and click Finish. You should now see a Java module inside your Android project.
Add your code to the Java module you've just created.
Click on the drop down to...
How do I reformat HTML code using Sublime Text 2?
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You don't need any plugins to do this.
Just select all lines (Ctrl A) and then from the menu select Edit → Line → Reindent.
This will work if your file is saved with an extension that contains HTML like .html or .php.
If you do this often, you may find this key ma...
How to create unit tests easily in eclipse [closed]
I want to create unit tests easily by just selecting method. Is there a tool in eclipse that does that. It should support templates. I should be able to create positive test as well as negative tests.
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