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Can someone explain the dollar sign in Javascript?
...e easily identified and not mixed up with, say, integers.
The dollar sign function $() in jQuery is a library function that is frequently used, so a short name is desirable.
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How can I quickly sum all numbers in a file?
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Just for fun, let's benchmark it:
$ for ((i=0; i<1000000; i++)) ; do echo $RANDOM; done > random_numbers
$ time perl -nle '$sum += $_ } END { print $sum' random_numbers
16379866392
real 0m0.226s
user 0m0.219s
sys 0m...
Why are flag enums usually defined with hexadecimal values
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Another fun fact with the x << y notation. 1 << 10 = KB, 1 << 20 = MB, 1 << 30 = GB and so on. It is really nice if you want to make a 16 KB array for a buffer you can just go var buffer = new byte[16 <<...
Flash CS4 refuses to let go
...n't seem to solve the problem. I'm going to chalk this one up to Adobe bug fun tiem. I'm going to mark it as solved, however.
– Ender
Feb 3 '10 at 19:23
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NoClassDefFoundError - Eclipse and Android
...to do was check the darn box for the jar in the "Order and Export" screen. Funny thing is that I only had to do this so that it would work on a Nook Tablet emulator. Did not have a problem on devices or other emulators.
– Luis
Jun 12 '12 at 19:58
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The type or namespace name does not exist in the namespace 'System.Web.Mvc'
...e normally catches me when I run from IIS and the app pool for the default site is set to .NET version 2.0. When using IIS from visual studio it creates a virtual directory but still runs under the default site's app pool.
If using the build in web server, right click on your web project, go to prop...
Nginx reverse proxy causing 504 Gateway Timeout
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If you want to increase or add time limit to all sites then you can add below lines to the nginx.conf file.
Add below lines to the http section of /usr/local/etc/nginx/nginx.conf or /etc/nginx/nginx.conf file.
fastcgi_read_timeout 600;
proxy_read_timeout 600;
If the ab...
实现一个简单的服务端推方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...写Nginx共享内存的话，可以这样操作：
shell> curl -d "id=123" http://<HOST>/config
如果要读Nginx共享内存的话，可以这样操作：
shell> curl http://<HOST>/config?field=id
注：实际应用时，应该加上权限判断逻辑，比如只有限定的IP地址才能...
What are Maven goals and phases and what is their difference?
...tly.
There are three major built-in Build Life Cycles:
default
clean
site
Each Build Lifecycle is Made Up of Phases
For example the default lifecycle comprises of the following Build Phases:
◾validate - validate the project is correct and all necessary information is available
◾com...
Stock ticker symbol lookup API [closed]
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The NASDAQ site hosts separate CSV lists for ticker symbols in each stock exchange (NYSE, AMEX and NASDAQ). You need to complete the captcha and get the CSV dump.
http://www.nasdaq.com/screening/company-list.aspx
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