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How to insert a character in a string at a certain position?
...e. I want to display it as a String with a decimal point (.) at 2 digits from the end of int . I wanted to use a float but was suggested to use String for a better display output (instead of 1234.5 will be 1234.50 ). Therefore, I need a function that will take an int as parameter and ret...
UIDevice uniqueIdentifier deprecated - What to do now?
... @DarkDust: but since the active interface changes when you switch from wifi to cellular modem, the MAC address of the active interface should also change; unless you always pick a particular interface to get the MAC
– user102008
Aug 27 '11 at 1:01
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How to check for a valid Base64 encoded string
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Use Convert.TryFromBase64String from C# 7.2
public static bool IsBase64String(string base64)
{
Span<byte> buffer = new Span<byte>(new byte[base64.Length]);
return Convert.TryFromBase64String(base64, buffer , out int bytes...
Crontab - Run in directory
... a job to run daily in the root crontab. But I would like it to execute it from a particular directory so it can find all the files it needs, since the application has a bunch of relative paths.
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Replacing NAs with latest non-NA value
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You probably want to use the na.locf() function from the zoo package to carry the last observation forward to replace your NA values.
Here is the beginning of its usage example from the help page:
library(zoo)
az <- zoo(1:6)
bz <- zoo(c(2,NA,1,4,5,2))
na.locf(...
How do I get a file extension in PHP?
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People from other scripting languages always think theirs is better because they have a built-in function to do that and not PHP (I am looking at Pythonistas right now :-)).
In fact, it does exist, but few people know it. Meet path...
How to print the contents of RDD?
...rite it to disk you can use one of the saveAs... functions (still actions) from the RDD API
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IntelliJ IDEA hint parameters of method
I'm just swapping from eclipse to IntelliJ, and I can't find this particular feature.
5 Answers
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Why do I need Transaction in Hibernate for read-only operations?
... is DB specific. E.g. MySQL added support for this only in InnoDB starting from 5.6.4 version.
If you're not using JDBC directly, but rather an ORM, that might be problematic. For instance Hibernate community says that working outside of transaction might cause unpredictable behavior. This is becaus...
Difference between git stash pop and git stash apply
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git stash pop applies the top stashed element and removes it from the stack. git stash apply does the same, but leaves it in the stash stack.
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