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What does $$ mean in the shell?
...e sense that it will never be reused (indeed, PIDs are reused constantly). What it does give you is a number such that, if another person runs your script, they will get a different identifier whilst yours is still running. Once yours dies, the PID may be recycled and someone else might run your scr...
jQuery table sort
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What if you have multiple tables on a page? I forked the jsfiddle jsfiddle.net/CM8bT
– Marc
Mar 23 '12 at 2:29
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Node.js + Nginx - What now?
...erver. Therefore you need to setup an nginx config file for node.
This is what I 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...
What is the difference between and ?
What is the difference between <html lang="en"> and <html lang="en-US"> ? What other values can follow the dash?
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What is @ModelAttribute in Spring MVC?
What is the purpose and usage of @ModelAttribute in Spring MVC?
13 Answers
13
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Facebook API “This app is in development mode”
What does "development mode" mean for a facebook app? I find no exact explanation of what I can and can't do while in development mode and what's the relation with the "Not available to all users because your app is not live".
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How do you effectively model inheritance in a database?
What are the best practices for modeling inheritance in databases?
9 Answers
9
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How can I ensure that a division of integers is always rounded up?
...ngineering principles in doing so.
Start by reading the specification for what you're trying to replace. The specification for integer division clearly states:
The division rounds the result towards zero
The result is zero or positive when the two operands have the same sign and zero or negative ...
What to gitignore from the .idea folder?
I started using WebStorm for web development and am not sure what to add and what to exclude from our Git repository. Clearly some files inside the .idea folder are meant to be version controlled like the external library settings ( jsLibraryMappings.xml ) but others will probably change very ofte...
What is “:-!!” in C code?
...can be evaluated to be 0, and if not, to fail the build.
The macro is somewhat misnamed; it should be something more like BUILD_BUG_OR_ZERO, rather than ...ON_ZERO. (There have been occasional discussions about whether this is a confusing name.)
You should read the expression like this:
sizeof(st...