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Adding an arbitrary line to a matplotlib plot in ipython notebook
...ther new to both python/matplotlib and using it through the ipython notebook. I'm trying to add some annotation lines to an existing graph and I can't figure out how to render the lines on a graph. So, for example, if I plot the following:
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How to efficiently concatenate strings in go
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New Way:
From Go 1.10 there is a strings.Builder type, please take a look at this answer for more detail.
Old Way:
Use the bytes package. It has a Buffer type which implements io.Writer.
package main
import (
"bytes"
"fmt"
)
func main() {
var buffer bytes.Buffer
for...
Where to place AutoMapper.CreateMaps?
...tion.Configure();
AutoMapperDomainConfiguration.Configure();
// etc
It's kind of like an "interface of words" - can't enforce it, but you expect it, so you can code (and refactor) if necessary.
EDIT:
Just thought I'd mention that I now use AutoMapper profiles, so the above example becomes:
publ...
How can I start an interactive console for Perl?
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You can use the perl debugger on a trivial program, like so:
perl -de1
Alternatively there's Alexis Sukrieh's Perl Console application, but I haven't used it.
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Pipe output and capture exit status in Bash
...t.txt ; test ${PIPESTATUS[0]} -eq 0
Or another alternative which also works with other shells (like zsh) would be to enable pipefail:
set -o pipefail
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The first option does not work with zsh due to a little bit different syntax.
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How can I get the current user's username in Bash?
...variable=$(whoami)
or
myvariable=$USER
Of course, you don't need to make a variable since that is what the $USER variable is for.
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How do I compare two hashes?
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the Tin Manthe Tin Man
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How do I 'git diff' on a certain directory?
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Peter Mortensen
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answered Dec 5 '11 at 7:13
GeoGeo
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Serializing PHP object to JSON
...votes. If you're still using PHP < 5.4, your are creating a security risk and endagering your project. If you have no compelling reasons to stay at <5.4, or even already use version >= 5.4, do not use this answer, and just use PHP>= 5.4 (or, you know, a recent one) and implement the Json...
Specifying column name in a “references” migration
I want to make a migration in Rails, referencing another table. Usually, I would do something like:
6 Answers
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