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In php, is 0 treated as empty?
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In case of numeric values you should use is_numeric function:
$var = 0;
if (is_numeric($var))
{
echo "Its not empty";
}
else
{
echo "Its empty";
}
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In bash, how does one clear the current input?
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Found a short reference at http://www.ice2o.com/bash_quick_ref.html while searching.
ctrl + e (if not at the end of the line) plus ctrl + u will do it.
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UITableView Setting some cells as “unselectable”
... edited May 14 '13 at 9:22
DD_
6,5791111 gold badges3535 silver badges6060 bronze badges
answered Aug 20 '10 at 11:49
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CodeIgniter: How to get Controller, Action, URL information
...ollowing work, but am currently unable to test:
$this->router->fetch_class();
$this->router->fetch_method();
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How do you copy and paste into Git Bash
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@AntiGameZ undo can be done with Ctrl-_. I believe this is all from readline utility, which emulates Emacs, the One True Editor.
– Brady Trainor
Feb 11 '14 at 1:35
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How can I get the MD5 fingerprint from Java's keytool, not only SHA-1?
...droidkeystore like that created in C drive.
C:\Program Files\Java\jdk1.7.0_05\bin>keytool -v -list -keystore C:\Androidkeyst
ore\debug.keystore
it asks here..
Enter keystore password: android
enter you got here MD5 & SHA1..etc
Keystore type: JKS
Keystore provider: SUN
Your keystore cont...
How can I remove all my changes in my SVN working directory?
...ame
svn status --no-ignore | grep '^\?' | \
perl -ne 'print "$1\n" if $_ =~ /^\S+\s+(.*)$/' | \
tr '\n' '\0' | xargs -0 rm -rf
Tested on Linux; may work in Cygwin, but relies on (I believe) a GNU-specific extension which allows xargs to split based on '\0' instead of whitespace.
The advan...
How can I display an image from a file in Jupyter Notebook?
...wn section:
example:
<img src="https://www.tensorflow.org/images/colab_logo_32px.png" />
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A top-like utility for monitoring CUDA activity on a GPU
...o worked for me on redhat 8 when I was getting some error due to importing _curses in python.
– Bobak Hashemi
Aug 6 '19 at 22:32
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Change the font of a UIBarButtonItem
...Don't forget the exclamation mark (!) after the font. The error message: "'_' is not convertible to 'String'" is not really helpful.
– Ciryon
Sep 3 '15 at 6:41
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