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How to call shell commands from Ruby
...n then access the exitstatus and pid properties:
$?.exitstatus
For more reading see:
http://www.elctech.com/blog/i-m-in-ur-commandline-executin-ma-commands
http://blog.jayfields.com/2006/06/ruby-kernel-system-exec-and-x.html
http://tech.natemurray.com/2007/03/ruby-shell-commands.html
...
HTML/CSS: Making two floating divs the same height
... of single quotes according to this discussion: sitepoint.com/forums/showthread.php?t=54273#6
– instanceof me
Jul 30 '09 at 10:57
1
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Changing git commit message after push (given that no one pulled from remote)
... branches at the same time.
Pulling / fetching afterwards
Anyone who already pulled will now get an error message, and they will need to update (assuming they aren't making any changes themselves) by doing something like this:
git fetch origin
git reset --hard origin/master # Loses local commit...
How to set up a git project to use an external repo submodule?
...
You have a project -- call it MyWebApp that already has a github repo
You want to use the jquery repository in your project
You want to pull the jquery repo into your project as a submodule.
Submodules are really, really easy to reference and use. Assuming you already ...
Is there a decorator to simply cache function return values?
...ypes, such as metaclasses (since the dict attributes on type instances are read-only proxies for the class namespace), and those that specify slots without including dict as one of the defined slots (as such classes don’t provide a dict attribute at all).
...
Maven is not working in Java 8 when Javadoc tags are incomplete
...ting Javadocs. You need to turn this off for Java 8 as specified in this thread. You'll have to add this to your maven configuration:
<profiles>
<profile>
<id>java8-doclint-disabled</id>
<activation>
<jdk>[1.8,)</jdk>
</activation>...
Why is Magento so slow? [closed]
...
Good starting point is here: http://www.magentocommerce.com/boards/viewthread/12998/P30/ - but if you've not used memcached at all before, its worth looking at some general info about it as well.
- Enable template/view caching.
This is a good article: http://inchoo.net/ecommerce/magento/magento...
Meaning of = delete after function declaration
...thin the class and its friends). This removes any uncertainty when you're reading the code. @Prasoon, that second example is still only deleting constructors - it would be nice to see a deleted operator long () for example.
– Toby Speight
Aug 17 '17 at 14:34
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iPad Web App: Detect Virtual Keyboard Using JavaScript in Safari?
...n reset it. Here's how that might look in code, using jQuery:
$(document).ready(function(){
$('input').bind('focus',function() {
$(window).scrollTop(10);
var keyboard_shown = $(window).scrollTop() > 0;
$(window).scrollTop(0);
$('#test').append(keyboard_shown?...
Pandas - Get first row value of a given column
...
I'm looping through a bunch of .csv files and reading the first value of a certain column in each. For some reason which I can't explain instead of returning the value this sometimes returns the index along with the value which messes up processing. I resorted to df.col....