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Omitting the second expression when using the if-else shorthand
Can I write the if else shorthand without the else ?
8 Answers
8
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How to implement a many-to-many relationship in PostgreSQL?
...ct is hardly unique (not a good "natural key"). Also, enforcing uniqueness and referencing the column in foreign keys is typically cheaper with a 4-byte integer (or even an 8-byte bigint) than with a string stored as text or varchar.
Don't use names of basic data types like date as identifiers. Whi...
PHP Array to CSV
... edit the code I have above to do this? as it's outputting all the fields, and using examples of fputcsv in the manual I can't get it to do this
– JohnnyFaldo
Oct 28 '12 at 11:44
7...
git - Find commit where file was added
...it-log#Documentation/git-log.txt---diff-filterACDMRTUXB82308203
I have a handy alias for this, because I always forget it:
git config --global alias.whatadded 'log --diff-filter=A'
This makes it as simple as:
git whatadded -- foo.js
The below one liner will recursively search through sub di...
Notepad++ show open files on the left
...nces -> General, check "Show" in the "Document List Panel" area. EDIT: And now I see that the next answer (which has many more votes) already explained this.
– GordonM
Oct 11 '17 at 4:20
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Statistics: combinations in Python
... +1 for suggesting to write something simple, for using reduce, and for the cool demo with pascal triangle
– jon_darkstar
Nov 8 '10 at 15:32
6
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How can two strings be concatenated?
...of the vector to be collapsed.
You can even combine both:
> paste(x, "and some more", sep="|-|", collapse="--")
[1] "Hello|-|and some more--World|-|and some more"
Hope this helps.
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iPhone - Grand Central Dispatch main thread
I have been using with success, grand central dispatch in my apps, but I was wondering what is the real advantage of using something like this:
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Verifying a specific parameter with Moq
I'm starting using Moq and struggling a bit.
I'm trying to verify that messageServiceClient is receiving the right parameter, which is an XmlElement, but I can't find any way to make it work. It works only when I don't check a particular value.
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Positioning MKMapView to show multiple annotations at once
...ine, but I want to resize the map to fit all annotations onscreen at once, and I'm not sure how to do this.
24 Answers
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