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Right query to get the current number of connections in a PostgreSQL DB
...ence.
Both queries are based on exactly the same data, so they will be equally accurate.
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How to change the value of ${user} variable used in Eclipse templates
...er at your command line, or using the eclipse.ini file in your eclipse install root directory.
This seems to work fine for me:
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
256M
-vmargs
-Dosgi.requiredJavaVersion=1.5
-Duser.name=Davide Inglima
-Xms40m
-Xmx512m
Update:
http://morlho...
Determine if two rectangles overlap each other?
...er to construct rectangles (between 2 and 5): height, width, x-pos, y-pos. All of these rectangles will exist parallel to the x and the y axis, that is all of their edges will have slopes of 0 or infinity.
...
difference between offsetHeight and clientHeight
...ly because the browser already has the clientSize readily available (after all, it it the viewport), but needs to calculate offsetHeight after reflowing the whole document?
– Oded
Nov 6 '13 at 15:02
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How to calculate the SVG Path for an arc (of a circle)
...
This is super! Note that the arcSweep variable is actually controlling the large-arc-flag svg A parameter. In the above code, the value for the sweep-flag parameter is always zero. arcSweep should probably be renamed to something like longArc.
– Steven Gr...
Why can I use auto on a private type?
...e itself is still usable, which is why you can return it to client code at all.
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将 App Inventor 2 项目连接到外部传感器 · App Inventor 2 中文网
...this effort was to extend AppInventor’s toolset into the physical space, allowing users to easily interface with external sensors, actuators, and other hardware.
The MOIO board[1] is a low-cost, programmable microcontroller and can provide input/output functionality for a wide range of applicatio...
Differences in boolean operators: & vs && and | vs ||
...)){
}
"Short-circuiting" means the operator does not necessarily examine all conditions. In the above examples, && will examine the second condition only when a is not null (otherwise the whole statement will return false, and it would be moot to examine following conditions anyway), so th...
Difference between Git and GitHub
... Also, you don't have to use a remote service like github if all you want is version control - local git is just fine for that. Remote repositories are for backup and collaboration.
– Thilo
Nov 10 '12 at 11:42
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How to call function from another file in go language?
I want to call function from another file in go lang, can any one help?
4 Answers
4
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