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What command means “do nothing” in a conditional in Bash?
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The no-op command in shell is : (colon).
if [ "$a" -ge 10 ]
then
:
elif [ "$a" -le 5 ]
then
echo "1"
else
echo "2"
fi
From the bash manual:
: (a colon)
Do nothing beyond expanding arguments and performing redirections....
Setting Access-Control-Allow-Origin in ASP.Net MVC - simplest possible method
...ough a proxy. It's all 100% transparent (you just have to include my proxy and the script).
Download it using nuget corsproxy and follow the included instructions.
Blog post | Source code
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How to force vim to syntax-highlight a file as html?
...ing the backslash allows it to work for Dockerfile / Dockerfile.something and Dockerfilesomething
– Android Control
Oct 15 '19 at 12:22
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Is it safe to delete a NULL pointer?
...elete performs the check anyway, so checking it on your side adds overhead and looks uglier. A very good practice is setting the pointer to NULL after delete (helps avoiding double deletion and other similar memory corruption problems).
I'd also love if delete by default was setting the parameter t...
“date(): It is not safe to rely on the system's timezone settings…”
...n order to find the php.ini used by apache, just execute the following command php -i | grep php.ini.
– Joël Salamin
Sep 24 '14 at 20:15
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Get Value of a Edit Text field
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If you don't place EditText in the clas-wide scope, and instead declare it in OnCreate, it wants it to be declared as final. I assume it is better not to make it final, but is the only way to do so, to make it class-wide? IS making it class-wide the best way to go about this?
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Apply style to only first level of td tags
... probably do, alas), all you can do is select the inner element separately and un-set the style:
.MyClass td { border: solid 1px red; }
.MyClass td td { border: none; }
*Note that the first example references a tbody element not found in your HTML. It should have been in your HTML, but browsers...
Redirecting to previous page after authentication in node.js using passport.js
I'm trying to establish a login mechanism using node.js, express and passport.js. The Login itself works quite nice, also sessions are stored nicely with redis but I do have some troubles with redirecting the user to where he started from before being prompted to authenticate.
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adb command not found
I need to run an adb forward command before I could use the ezkeyboard application which allows user to type on the phone using browser.
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How to execute a function when page has fully loaded?
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That's called load. It came waaaaay before DOM ready was around, and DOM ready was actually created for the exact reason that load waited on images.
window.addEventListener('load', function () {
alert("It's loaded!")
})
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