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Check if element exists in jQuery [duplicate]
...swered Feb 13 '14 at 4:38
Gaurav123Gaurav123
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Node.js + Nginx - What now?
... have done in my Ubuntu box:
Create the file yourdomain.com at /etc/nginx/sites-available/:
vim /etc/nginx/sites-available/yourdomain.com
In it you should have something like:
# the IP(s) on which your node server is running. I chose port 3000.
upstream app_yourdomain {
server 127.0.0.1:30...
.htaccess not working apache
...mod_rewrite module
a2enmod rewrite
add the following code to /etc/apache2/sites-available/default
AllowOverride All
Restart apache
/etc/init.d/apache2 restart
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Find duplicate lines in a file and count how many time each line was duplicated?
...iq -c | grep -v '^ *1 '
For the given example, the result would be:
3 123
2 234
If you want to print counts for all lines including those that appear only once:
sort FILE | uniq -c
or, with GNU long options (on Linux):
sort FILE | uniq --count
For the given input, the output is:
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What is a “web service” in plain English?
...by other programs over the web (HTTP).
For example, when you create a website in PHP that outputs HTML, its target is the browser and by extension the human reading the page in the browser. A web service is not targeted at humans but rather at other programs.
So your PHP site that generates a ran...
twitter bootstrap navbar fixed top overlapping site
I am using bootstrap on my site and am having issues with the navbar fixed top. When I am just using the regular navbar, everything is fine. However, when i try to switch it to navbar fixed top, all the other content on the site shifts up like the navbar isn't there and the navbar overlaps it. here'...
How do you remove all the options of a select box and then add one option and select it with jQuery?
.../attr/text like: .append($("<option></option>").attr("value", '123').text('ABC!')
– Brock Hensley
Jun 27 '13 at 21:58
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Can I change the height of an image in CSS :before/:after pseudo-elements?
...nswered Jan 23 '12 at 21:39
user123444555621user123444555621
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How to avoid long nesting of asynchronous functions in Node.js
...t to make a page that displays some data from a DB, so I have created some functions that get that data from my DB. I'm just a newbie in Node.js, so as far as I understand, if I want to use all of them in a single page (HTTP response) I'd have to nest them all:
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pip installing in global site-packages instead of virtualenv
...package in a virtualenv causes the package to be installed in the global site-packages folder instead of the one in the virtualenv folder. Here's how I set up Python3 and virtualenv on OS X Mavericks (10.9.1):
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