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Why doesn't git recognize that my file has been changed, therefore git add not working
...e git index to 'assume unchanged' on my file.
You can tell git to stop ignoring changes to the file with:
git update-index --no-assume-unchanged path/to/file
If that doesn't help a reset may be enough for other weird cases.
In practice I found removing the cached file and resetting it to wor...
Python: How to get stdout after running os.system? [duplicate]
...d is the stdout output, then take a look at subprocess.check_output():
import subprocess
batcmd="dir"
result = subprocess.check_output(batcmd, shell=True)
Because you were using os.system(), you'd have to set shell=True to get the same behaviour. You do want to heed the security concerns about p...
PHP server on local machine?
...out uploading them to my host. Basically testing them on my own machine before I upload them. How do I do that?
13 Answers
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Express next function, what is it really for?
...t sometimes next is called without arguments. Anybody knows of a good tutorial etc that describes the next function?
8 ...
How slow are .NET exceptions?
...xceptions. I wish to resolve a simple issue. 99% of the time the argument for not throwing exceptions revolves around them being slow while the other side claims (with benchmark test) that the speed is not the issue. I've read numerous blogs, articles, and posts pertaining one side or the other. So ...
Passing enum or object through an intent (the best solution)
... everybody fails to mention that Enums are actually Serializable and therefore can perfectly be added to an Intent as an extra. Like this:
public enum AwesomeEnum {
SOMETHING, OTHER;
}
intent.putExtra("AwesomeEnum", AwesomeEnum.SOMETHING);
AwesomeEnum result = (AwesomeEnum) intent.getSerializab...
$.ajax - dataType
...ontentType is the HTTP header sent to the server, specifying a particular format.
Example: I'm sending JSON or XML
dataType is you telling jQuery what kind of response to expect.
Expecting JSON, or XML, or HTML, etc. The default is for jQuery to try and figure it out.
The $.ajax() documentation ha...
Why do Objective-C files use the .m extension?
...ve-C and Cocoa, I've been wondering why they have chosen the extension .m for the implementation files - was it supposed to mean something, or was it just a random letter?
...
What does it mean to start a PHP function with an ampersand?
...
An ampersand before a function name means the function will return a reference to a variable instead of the value.
Returning by reference is useful when
you want to use a function to find to
which variable a reference should be
bou...
Why does changing 0.1f to 0 slow down performance by 10x?
...
Welcome to the world of denormalized floating-point! They can wreak havoc on performance!!!
Denormal (or subnormal) numbers are kind of a hack to get some extra values very close to zero out of the floating point representation. Operations ...