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Reverting a single file to a previous version in git [duplicate]
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910
Let's start with a qualitative description of what we want to do (much of this is said in Ben St...
How do I get the full path to a Perl script that is executing?
...during execution. I discovered that depending on how you call the script $0 varies and sometimes contains the fullpath+filename and sometimes just filename . Because the working directory can vary as well I can't think of a way to reliably get the fullpath+filename of the script.
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Using multiple arguments for string formatting in Python (e.g., '%s … %s')
...uple.
However from Python 2.6 onwards you can use format instead of %:
'{0} in {1}'.format(unicode(self.author,'utf-8'), unicode(self.publication,'utf-8'))
Usage of % for formatting strings is no longer encouraged.
This method of string formatting is the new standard in Python 3.0, and shou...
Declare and initialize a Dictionary in Typescript
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306
Edit: This has since been fixed in the latest TS versions. Quoting @Simon_Weaver's comment on t...
How do I perform an IF…THEN in an SQL SELECT?
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30 Answers
30
Active
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How to create empty data frame with column names specified in R? [duplicate]
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Just create a data.frame with 0 length variables
eg
nodata <- data.frame(x= numeric(0), y= integer(0), z = character(0))
str(nodata)
## 'data.frame': 0 obs. of 3 variables:
## $ x: num
## $ y: int
## $ z: Factor w/ 0 levels:
or to create...
Unique Key constraints for multiple columns in Entity Framework
I'm using Entity Framework 5.0 Code First;
9 Answers
9
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.rar, .zip files MIME Type
.../ get the first 7 bytes
$bytes = file_get_contents($file, FALSE, NULL, 0, 7);
$ext = strtolower(substr($file, - 4));
// RAR magic number: Rar!\x1A\x07\x00
// http://en.wikipedia.org/wiki/RAR
if ($ext == '.rar' and bin2hex($bytes) == '526172211a0700') {
return TRUE;
}...
Changing UIButton text
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Alex Zavatone
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answered Jul 10 '12 at 15:50
Jesse GumpoJesse Gumpo
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What is the http-header “X-XSS-Protection”?
...d with HTTP for fun in telnet now (i.e. just typing in telnet google.com 80 and putting in random GETs and POSTs with different headers and the like) but I've come across something that google.com transmits in it's headers that I don't know.
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