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Getting an empty JQuery object
...ollowing code I set up a change handler on a select box to show and hide some follow up questions based on the value of the selection.
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Can I use an OR in regex without capturing what's enclosed?
I'm using rubular.com to build my regex, and their documentation describes the following:
4 Answers
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Getting pids from ps -ef |grep keyword
I want to use ps -ef | grep "keyword" to determine the pid of a daemon process (there is a unique string in output of ps -ef in it).
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jquery how to empty input field
I am in a mobile app and I use an input field in order user submit a number.
7 Answers
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str performance in python
...ece of python code ( python 2.6 up to 3.2 ), I discovered that the
str method to convert an object (in my case an integer) to a string is almost an order of magnitude slower than using string formatting.
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Setting environment variables for accessing in PHP when using Apache
I have a Linux environment and I have a PHP Web Application that conditionally runs based on environment variables using getenv in PHP. I need to know how these environment variables need to be set for the application to work correctly. I am not sure how to set this up on Apache.
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What is the difference between double-ampersand (&&) and semicolon (;) in Linux Bash?
What is the difference between ampersand and semicolon in Linux Bash ?
3 Answers
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Removing multiple classes (jQuery)
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$("element").removeClass("class1 class2");
From removeClass(), the class parameter:
One or more CSS classes to remove from
the elements, these are separated by
spaces.
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keep rsync from removing unfinished source files
I have two machines, speed and mass. speed has a fast Internet connection and is running a crawler which downloads a lot of files to disk. mass has a lot of disk space. I want to move the files from speed to mass after they're done downloading. Ideally, I'd just run:
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How to use CMAKE_INSTALL_PREFIX
I want to generate Makefile with install target, making installation to /usr instead of default /usr/local. Assuming that build directory is done in the source subdirectory, I execute:
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