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Double negation (!!) in javascript - what is the purpose? [duplicate]
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When you say "pretty much equivalent", do you know if there are actually any differences? Faster than the function call Boolean(), perhaps?
– mwcz
May 6 '12 at 2:06
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Python if-else short-hand [duplicate]
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The most readable way is
x = 10 if a > b else 11
but you can use and and or, too:
x = a > b and 10 or 11
The "Zen of Python" says that "readability counts", though, so go for the first way.
Also, the and-or trick will fail if you put a variable ...
Delete a dictionary item if the key exists [duplicate]
Is there any other way to delete an item in a dictionary only if the given key exists, other than:
3 Answers
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Javascript/jQuery detect if input is focused [duplicate]
How do I detect when .click event triggers if textarea is already focused?
4 Answers
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Retrieving Android API version programmatically
...o this int is in the android.os.Build.VERSION_CODES class.
Code example:
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP){
// Do something for lollipop and above versions
} else{
// do something for phones running an SDK before lollipop
}
Edit: This SDK...
How to split csv whose columns may contain ,
...mas contained inside of quotes. I owe you an adult beverage of your choice if our paths ever cross.
– Mark Kram
Jul 30 '14 at 17:56
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How to restore the permissions of files and directories within git if they have been modified?
I have a git checkout. All the file permissions are different than what git thinks they should be therefore they all show up as modified.
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Cannot set some HTTP headers when using System.Net.WebRequest
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If you need the short and technical answer go right to the last section of the answer.
If you want to know better, read it all, and i hope you'll enjoy...
I countered this problem too today, and what i discovered today is...
Replace a value in a data frame based on a conditional (`if`) statement
... <- as.character(junk$nm)
junk$nm[junk$nm == "B"] <- "b"
EDIT: And if indeed you need to maintain nm as factors, add this in the end:
junk$nm <- as.factor(junk$nm)
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LEFT JOIN vs. LEFT OUTER JOIN in SQL Server
What is the difference between LEFT JOIN and LEFT OUTER JOIN ?
12 Answers
12
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