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Why would iterating over a List be faster than indexing through it?
...use every time you are indexing it restarts from the beginning of the list and goes through every item. This means that your complexity is effectively O(N^2) just to traverse the list!
If instead I did this:
for(String s: list) {
System.out.println(s);
}
then what happens is this:
head ->...
TimeStamp on file name using PowerShell
... example, $() like so:
"C:\temp\mybackup $(get-date -f yyyy-MM-dd).zip"
And if you are getting the path from somewhere else - already as a string:
$dirName = [io.path]::GetDirectoryName($path)
$filename = [io.path]::GetFileNameWithoutExtension($path)
$ext = [io.path]::GetExtension($path)
$...
Why does make think the target is up to date?
...ve a file/directory named test in the directory. If this directory exists, and has no dependencies that are more recent, then this target is not rebuild.
To force rebuild on these kind of not-file-related targets, you should make them phony as follows:
.PHONY: all test clean
Note that you can de...
How do I get Fiddler to stop ignoring traffic to localhost?
... so that localhost has a "." after it.
For instance, you start debugging and the you have the following URL in the Address bar:
http://localhost:49573/Default.aspx
Change it to:
http://localhost.:49573/Default.aspx
Hit enter and Fidder will start picking up your traffic.
...
CFLAGS vs CPPFLAGS
I understand that CFLAGS (or CXXFLAGS for C++) are for the compiler, whereas CPPFLAGS is used by the preprocessor.
4 Answer...
How can you set class attributes from variable arguments (kwargs) in python
... constructor (or other function) that takes a variable number of arguments and then sets them as class attributes conditionally.
...
How to loop through files matching wildcard in batch file
...t of base filenames, for each name 'f' there are exactly two files, 'f.in' and 'f.out'. I want to write a batch file (in Windows XP) which goes through all the filenames, for each one it should:
...
Define all functions in one .R file, call them from another .R file. How, if possible?
...If abc.R is:
fooABC <- function(x) {
k <- x+1
return(k)
}
and xyz.R is:
fooXYZ <- function(x) {
k <- fooABC(x)+1
return(k)
}
then this will work:
> source("abc.R")
> source("xyz.R")
> fooXYZ(3)
[1] 5
>
Even if there are cyclical dependencies, this wi...
Map vs Object in JavaScript
I just discovered chromestatus.com and, after losing several hours of my day, found this feature entry :
12 Answers
...
What is the meaning of “… …” token? i.e. double ellipsis operator on parameter pack
...mma is purely optional; §8.3.5/4 does say
Where syntactically correct and where “...” is not part of an abstract-declarator, “, ...” is synonymous with “...”.
This is within an abstract-declarator, [edit] but Johannes makes a good point that they are referring to an abstract-decla...