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Why and How to avoid Event Handler memory leaks?
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answered Dec 24 '10 at 14:32
Jon SkeetJon Skeet
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quick random row selection in Postgres
...or(random()*N) LIMIT 1;
Consider a table of 2 rows; random()*N generates 0 <= x < 2 and for example SELECT myid FROM mytable OFFSET 1.7 LIMIT 1; returns 0 rows because of implicit rounding to nearest int.
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Better explanation of when to use Imports/Depends
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answered Dec 26 '11 at 20:25
Josh O'BrienJosh O'Brien
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Measuring execution time of a function in C++
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It is a very easy-to-use method in C++11. You have to use std::chrono::high_resolution_clock fro...
How do I change the hover over color for a hover over table in Bootstrap?
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Remove multiple elements from array in Javascript/jQuery
...op:
var valuesArr = ["v1","v2","v3","v4","v5"],
removeValFromIndex = [0,2,4];
for (var i = removeValFromIndex.length -1; i >= 0; i--)
valuesArr.splice(removeValFromIndex[i],1);
Go through removeValFromIndex in reverse order and you can .splice() without messing up the indexes of th...
How might I find the largest number contained in a JavaScript array?
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edited May 22 '19 at 21:07
Andy
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answered Sep 4...
Use IntelliJ to generate class diagram
How do I get IntelliJ 10.5 (on the Mac) to generate a class diagram showing all of the classes in my project? I'm sure I'm overlooking something obvious, but I can only get the "Show Diagram" feature to show one class at a time. (I also figured out how to add additional classes, but again, only on...
Using parameters in batch files at Windows command line
...he notation %1 to %9. There are also two other tokens that you can use:
%0 is the executable (batch file) name as specified in the command line.
%* is all parameters specified in the command line -- this is very useful if you want to forward the parameters to another program.
There are also lots...
Exposing a port on a live Docker container
... host machine.
If you have a container with something running on its port 8000, you can run
wget http://container_ip:8000
To get the container's IP address, run the 2 commands:
docker ps
docker inspect container_name | grep IPAddress
Internally, Docker shells out to call iptables when you run an i...