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How to make good reproducible pandas examples
...=25, freq='D'), 4 ),
'price':(np.random.randn(100).cumsum() + 10) })
Now we have a sample dataset with 100 lines (25 dates per ticker), but we have only used 4 lines to do it, making it easy for everyone else to reproduce without copying and pasting 100 lines of code. You can then display sub...
How to develop and test an app that sends emails (without filling someone's mailbox with test data)?
...e the above code in your App.config or Web.config. When you send a message now it will be stored as a file in the directory you provided as "pickupDirectoryLocation". Works like a charm.
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What is the difference between bool and Boolean types in C#
...h the same question.
There is one minor difference on the MSDN page as of now.
VS2005
Note:
If you require a Boolean variable that can also have a value of null, use bool.
For more information, see Nullable Types (C# Programming Guide).
VS2010
Note:
If you require a Boolean v...
Rails 3 migrations: Adding reference column?
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If you are using the Rails 4.x you can now generate migrations with references, like this:
rails generate migration AddUserRefToProducts user:references
like you can see on rails guides
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sed whole word search and replace
...nside sed for matching whole words
\bmyWord\b
\<myWord\>
Hear me now and believe me later, this ugly syntax is what you need to use:
/[[:<:]]myWord[[:>:]]/
So, for example, to replace mint with minty for whole words only:
sed "s/[[:<:]]mint[[:>:]]/minty/g"
Source: re_fo...
Adding Only Untracked Files
...l files to the index, but without their content. Files that were untracked now behave as if they were tracked. Their content will be displayed in git diff, and you can add then interactively with git add -p.
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One line if-condition-assignment
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Now I'm thinking that I should have answered 'num1 = 10 + 10*(someBoolValue == True)' Problem defined as the 'False' condition as a no-op basically. If it needed to be a choice of adding a different value for 'False' then th...
“document.getElementByClass is not a function”
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There seems to be extensive (universal?) support now for document.getElementsByClassName caniuse.com/#feat=getelementsbyclassname
– Matt Evans
Jan 24 '18 at 9:04
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Why would you use an ivar?
...s have memorized how to call a hidden accessor dynamically (as long as we know the name…). Meanwhile, most of us have not memorized how to properly access ivars which aren't visible (beyond KVC). The class continuation helps, but it does introduce vulnerabilities.
This workaround's obvious:
if ([o...
Make child visible outside an overflow:hidden parent
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Hmm! Clever, I am just now experimenting with it. What I am currently getting is that the generated content behaves correctly, being preserved in the flow of the layout, however the parent will still ignore it and layer ontop of the floating elemen...