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Determine installed PowerShell version
...
+50
Use $PSVersionTable.PSVersion to determine the engine version. If the variable does not exist, it is safe to assume the engine is vers...
How to find Array length inside the Handlebar templates?
...;
{{/each}}
</ul>
Would yield:
<ul>
<li>apple 0 3</li>
<li>orange 1 3</li>
<li>banana 2 3</li>
</ul>
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Is there a faster/shorter way to initialize variables in a Rust struct?
...uct by giving only the non-default values:
let p = cParams { iInsertMax: 10, ..Default::default() };
With some minor changes to your data structure, you can take advantage of an automatically derived default implementation. If you use #[derive(Default)] on a data structure, the compiler will auto...
In PHP what does it mean by a function being binary-safe?
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106
It means the function will work correctly when you pass it arbitrary binary data (i.e. strings ...
How to print a list of symbols exported from a dynamic library
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man 1 nm
https://web.archive.org/web/20160316222941/https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man1/nm.1.html
For example:
nm -gU /usr/local/Cellar/cairo/1.12.16/lib/cairo/libcairo-trace.0.dylib
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Best content type to serve JSONP?
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answered Sep 21 '08 at 16:06
John MillikinJohn Millikin
178k3636 gold badges199199 silver badges215215 bronze badges
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How to compare two dates?
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505
Use the datetime method and the operator < and its kin.
>>> from datetime import d...
Add EBS to Ubuntu EC2 Instance
... (with update to /etc/fstab so it stays mounted on reboot):
sudo mkdir -m 000 /vol
echo "/dev/xvdf /vol auto noatime 0 0" | sudo tee -a /etc/fstab
sudo mount /vol
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...
git update-index --assume-unchanged on directory
...roblematic. If you have those, you can use this:
git ls-files -z | xargs -0 git update-index --assume-unchanged
Edit: incorporated input from @MatthewScharley regarding git ls-files -z.
Windows Commands
Note: If you're on windows, use Git Bash to run these commands
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How to shift a column in Pandas DataFrame
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In [18]: a
Out[18]:
x1 x2
0 0 5
1 1 6
2 2 7
3 3 8
4 4 9
In [19]: a.x2 = a.x2.shift(1)
In [20]: a
Out[20]:
x1 x2
0 0 NaN
1 1 5
2 2 6
3 3 7
4 4 8
...