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What does the “@” symbol do in Powershell?
...JonesDon Jones
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12
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Change text from “Submit” on input tag
...
Ry-♦Ry-
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How to correctly require a specific commit in Composer so that it would be available for dependent p
...": "dev-master",
"knplabs/gaufrette": "dev-master#2633721877cae79ad461f3ca06f3f77fb4fce02e"
}
}
From the documentation:
If one of your dependencies has a dependency on an unstable package
you need to explicitly require it as well, along with its sufficient
stability flag.
The...
Adding 'serial' to existing column in Postgres
...
134
Look at the following commands (especially the commented block).
DROP TABLE foo;
DROP TABLE bar...
Using the slash character in Git branch name
...basically this:
% cd .git/refs/heads
% ls -l
total 0
-rw-rw-r-- 1 jhe jhe 41 2009-11-14 23:51 labs
-rw-rw-r-- 1 jhe jhe 41 2009-11-14 23:51 master
% mkdir labs
mkdir: cannot create directory 'labs': File exists
You're getting the equivalent of the "cannot create directory" error.
When you h...
Use of 'use utf8;' gives me 'Wide character in print'
...from this:
$ perl -E 'say join ":", map { ord } split //, "鸡\n";'
233:184:161:10
The first three bytes make up your character, the last one is the line-feed.
The call to print sends these four characters to STDOUT. Your console then works out how to display these characters. If your console is...
Creating a directory in CMake
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254
When do you want to create the directory?
At build system generation
To create a directory whe...
Finding all possible combinations of numbers to reach a given sum
...target, partial + [n])
if __name__ == "__main__":
subset_sum([3,9,8,4,5,7,10],15)
#Outputs:
#sum([3, 8, 4])=15
#sum([3, 5, 7])=15
#sum([8, 7])=15
#sum([5, 10])=15
This type of algorithms are very well explained in the following Standford's Abstract Programming lecture -...
Android: Specify two different images for togglebutton using XML
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m_vitalym_vitaly
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Eclipse ctrl+right does nothing
... in the editor specifically (https://bugs.eclipse.org/bugs/show_bug.cgi?id=426557). Sometimes you can find that when you restart can't move with control+arrow in the editor but you can in other views like console window.
You can disable welcome screen ( in most eclipse based IDEs it's a checkbox in...