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How to prevent rm from reporting that a file was not found?
...only because it happens to be a unique abbreviation for --force. The short form -f is clearer and more portable.
– Keith Thompson
May 28 '14 at 18:09
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Error: The processing instruction target matching “[xX][mM][lL]” is not allowed
...not XML, because an extra XML declaration prevents the XML from being well-formed. Use a text editor or open the file programmatically and operate on it as text to eliminate the stray <?xml ?> declaration before treating it as an XML file.
– kjhughes
Nov...
Convert UNIX epoch to Date object
...o) default:
R> val <- 1352068320
R> as.POSIXct(val, origin="1970-01-01")
[1] "2012-11-04 22:32:00 CST"
R> as.Date(as.POSIXct(val, origin="1970-01-01"))
[1] "2012-11-05"
R>
Edit: A few years later, we can now use the anytime package:
R> library(anytime)
R> anytime(135206832...
How to write an inline IF statement in JavaScript?
...vaScripts behaviour of passing / returning one of the original values that formed the logical expression, which one depends on the type of operator. Certain other languages, like PHP, carry on the actual result of the operation i.e. true or false, meaning the result is always true or false; e.g:
14...
How to diff a commit with its parent?
...evisions(7) manpage):
Two other shorthands for naming a set that is formed by a commit and its
parent commits exist. The r1^@ notation means all parents of r1. r1^!
includes commit r1 but excludes all of its parents.
This means that you can use 15dc8^! as a shorthand for 15dc8^..1...
Changed GitHub password, no longer able to push back to the remote
...the new one.
If this doesn't work, check if you have activated the 2FA (2-Form Authentication). If that is the case, you need to generate a PTA (Personal Token Access).
See more at "Configure Git clients, like GitHub for Windows, to not ask for authentication".
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How to make part of the text Bold in android at runtime?
...
For Xamarin, etx.TextFormatted = sb;
– Darius
Jul 30 at 16:12
add a comment
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Converting pixels to dp
...his is dangerous and you shouldn't be using it, especially now when device form factors are becoming so complex.
– Saket
Aug 5 '19 at 17:50
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Android - Camera preview is sideways
... how I implement it:
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
if (isPreviewRunning) {
mCamera.stopPreview();
}
Parameters parameters = mCamera.getParameters();
Display display = ((WindowManager)getSystemService(WINDOW...
Clearing all cookies with JavaScript
...ubstr(0, eqPos) : cookie;
document.cookie = name + "=;expires=Thu, 01 Jan 1970 00:00:00 GMT";
}
}
Note that this code has two limitations:
It will not delete cookies with HttpOnly flag set, as the HttpOnly flag disables Javascript's access to the cookie.
It will not delete cookies th...