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Find commit by hash SHA in Git
...Pretty Formats section of the git show documentation contains
format:<string>
The format:<string> format allows you to specify which information you want to show. It works a little bit like printf format, with the notable exception that you get a newline with %n instead of \n …
The ...
What's a good way to overwrite DateTime.Now during testing?
...his. Suppose I had the following class:
public class MyClass
{
public string WhatsTheTime()
{
return DateTime.Now.ToString();
}
}
In Visual Studio 2012 you can add a Fakes assembly to your test project by right clicking on the assembly you want to create Fakes/Shims for and s...
Git commit date
Other than parsing git log for the date string, is there a Git native way to report the date of a certain commit?
4 Answers...
Grouping functions (tapply, by, aggregate) and the *apply family
... is best illustrated with a user-defined function to apply:
# Append ! to string, otherwise increment
myFun <- function(x){
if(is.character(x)){
return(paste(x,"!",sep=""))
}
else{
return(x + 1)
}
}
#A nested list structure
l <- list(a = list(a1 = "Boo", b1 = 2, c...
@Nullable annotation usage
...n Java8 or later there is a bit cleaner approach than an if block.
public String foo(@Nullable String mayBeNothing) {
return Optional.ofNullable(mayBeNothing).orElse("Really Nothing");
}
You can also throw some exception in there by swapping .orElse to
orElseThrow(() -> new Exception("Dont...
passport.js RESTful auth
... client-side once it is discovered. Passing the token as a part of the URL string will add this URL to the browser history and (if things are handled improperly) could lead to this URL being requested by the browser. Either makes the token visible. Anyone who then copied the URL could spoof this use...
“unrecognized selector sent to instance” error in Objective-C
...ction:@selector(xxxButtonClick:)
or (as in my case)
action:NSSelectorFromString([[NSString alloc] initWithFormat:@"%@BtnTui:", name.lowercaseString])
If you place a colon at the end of the string - it will pass the sender. If you do not place the colon at the end of the string it will not, and t...
How do I parse a YAML file in Ruby?
...
YAML.load takes a YAML string, YAML.load_file takes a relative file path.
– Narfanator
Jul 6 '16 at 22:30
...
What's the best practice to round a float to 2 decimals? [duplicate]
...nd(float d, int decimalPlace) {
BigDecimal bd = new BigDecimal(Float.toString(d));
bd = bd.setScale(decimalPlace, BigDecimal.ROUND_HALF_UP);
return bd.floatValue();
}
You need to decide if you want to round up or down. In my sample code I am rounding up.
Hope it helps.
EDIT
If you w...
Assign pandas dataframe column dtypes
...
Be careful if you have a column that needs to be a string but contains at least one value that could be converted to an int. All it takes is one value and the entire field is converted to float64
– Michael David Watson
May 5 '15 at 20:13...