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Postgres: INSERT if does not exist already
...global'), (6, 'Associated Computing, Inc') ON CONFLICT (did) DO UPDATE SET dname = EXCLUDED.dname; These examples are from manual - postgresql.org/docs/9.5/static/sql-insert.html
– AnnieFromTaiwan
Apr 22 '17 at 9:10
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How can I extend typed Arrays in Swift?
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This could also be accomplished with let deDuped = Set(dupes), which you could return in a non-destructive method called toSet as long as you're ok with the type change
– alexpyoung
Aug 2 '16 at 3:48
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Sign APK without putting keystore info in build.gradle
I am trying to setup signing process so that keystore password and key password are not stored in the project's build.gradle file.
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Where does VBA Debug.Print log to?
...ndy to quickly output the property of an object...
? myWidget.name
...to set the property of an object...
myWidget.name = "thingy"
...or to even execute a function or line of code, while in debugging mode:
Sheet1.MyFunction()
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Regular expression to check if password is “8 characters including 1 uppercase letter, 1 special cha
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The answer is to not use a regular expression. This is sets and counting.
Regular expressions are about order.
In your life as a programmer you will asked to do many things that do not make sense. Learn to dig a level deeper. Learn when the question is wrong.
The question (if ...
Eclipse IDE for Java - Full Dark Theme
...code highlighting (linked on the github page) and the Eclipse Chrome Theme settings that are also linked, it actually looks OK on Windows. You might need to change the system theme to one that uses similar colours for windows etc (e.g. download.microsoft.com/download/1/7/A/… for win 7 users) but y...
C#/Linq: Apply a mapping function to each element in an IEnumerable?
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To be fair it's supposed to match SQL (where the latter set of terms are common terminology)
– éclairevoyant
Aug 2 '17 at 15:14
5
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Application Skeleton to support multiple screens
...ed on dp units but additionally scaled for the user's font-size preference setting. Scaled at runtime. Use for font sizes
you should always use RelativeLayout for layouts; AbsoluteLayout is deprecated and should not be used.
Use appropriate image formats - PNG versus JPEG
Android "prefers" PNG for...
How to create custom easing function with Core Animation?
...fromValue
toValue:(double)toValue {
// get a keyframe animation to set up
CAKeyframeAnimation *animation =
[CAKeyframeAnimation animationWithKeyPath:path];
// break the time into steps
// (the more steps, the smoother the animation)
NSUInteger steps = 100;
NSMutableArray *val...
How are strings passed in .NET?
... class you've created.
class MutableThing
{
public int ChangeMe { get; set; }
}
If you follow the reference objLocal to the object it points to, you can change its properties:
void DoSomething(MutableThing objLocal)
{
objLocal.ChangeMe = 0;
}
There's still only one MutableThing in memory...