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npm not working - “read ECONNRESET”
...ured. Strangely enough, mine did come with a proxy defined, pointing to an IP and port 3128. Removing the proxy did the trick.
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Center a position:fixed element
...l not center vertically and won't work in IE6/7. */
left: 0;
right: 0;
Again, this works only in IE8+ if you care about IE, and this centers only horizontally not vertically.
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Find region from within an EC2 instance
...y AWS's backends. It will not work anywhere else (essentially because that IP is an APIPA). Also there is no way to get this information directly from inside the instance without connecting to a metadata source. This assumes that the 169.254.169.254 API is available, and your script should handle ne...
Can't access RabbitMQ web management interface after fresh install
... case after installing with Chocolatety on Windows 10. The installation script said the management plugin was enabled, but in reality, no plugins were enabled.
– Eris
Jun 20 '16 at 21:43
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How to toggle a value in Python
...0
>>> x ^= 1
>>> x
1
The technique generalizes to any pair of integers. The xor-by-one step is replaced with a xor-by-precomputed-constant:
>>> A = 205
>>> B = -117
>>> t = A ^ B # precomputed toggle constant
>>> x = A
>>> x ^...
How to check a checkbox in capybara?
...
It's better not to create multiple elements with the same id, so that (and not only for that) you can easily check/uncheck a checkbox with elegant
check 'cityID'
uncheck 'cityID'
If one can not avoid multiple elements with the same id and still needs t...
How to check for a valid URL in Java?
.../
private static final int PARSE_URL_SCHEME = 2;
/**
* Includes hostname/ip and port number.
*/
private static final int PARSE_URL_AUTHORITY = 4;
private static final int PARSE_URL_PATH = 5;
private static final int PARSE_URL_QUERY = 7;
private static final int PARSE_URL_FRAGMENT = 9;
You ca...
No internet on Android emulator - why and how to fix? [closed]
...y My APN.
Click on APN. Enter www.
Click on Proxy. enter your proxy server IP. you can get it from internet explorers internet options menu.
click on Port. enter port number in my case it was 8080. you can get it from internet explorers internet options menu.
Click on User-name. provide user-name in...
How to debug an apache virtual host configuration?
... type the following command:
httpd -S
This command will dump out a description of how Apache parsed the configuration file. Careful examination of the IP addresses and server names may help uncover configuration mistakes. (See the docs for the httpd program for other command line options).
...
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
... to implement multitouch: Rotation Detector
Xinyue Deng dengxinyue0420@gmail.com
DRAFT (March 6, 2016): Building extensions requires the App Inventor extensions capability, which is not yet incorporated into the App Inventor release. But you can try some ofary AI2 server.
You can implement the...