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Where does the “flatmap that s***” idiomatic expression in Scala come from?
... a lot of tedious if/then/else code you would write with calls to flatMap (and other higher order functions).
This is especially true for Options (see http://tonymorris.github.io/blog/posts/scalaoption-cheat-sheet/)
But it applies to other monads as well (although I have to admit, I don't exactly...
Add column to SQL Server
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Use this query:
ALTER TABLE tablename ADD columname DATATYPE(size);
And here is an example:
ALTER TABLE Customer ADD LastName VARCHAR(50);
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HTML Input=“file” Accept Attribute File Type (CSV)
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Well this is embarrassing... I found the solution I was looking for and it couldn't be simpler. I used the following code to get the desired result. Hope this helps someone in the future. Thanks everyone for your help.
<input id="fileSelect" type="file" accept=".csv, application/vnd.open...
Plot a bar using matplotlib using a dictionary
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You can do it in two lines by first plotting the bar chart and then setting the appropriate ticks:
import matplotlib.pyplot as plt
D = {u'Label1':26, u'Label2': 17, u'Label3':30}
plt.bar(range(len(D)), list(D.values()), align='center')
plt.xticks(range(len(D)), list(D.keys()))
# #...
Is there an online name demangler for C++? [closed]
I'm getting a fairly long and confusing link error, and would love it if I could just paste it into some textbox on some website and have the names un-mangled for me.
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How to @link to a Enum Value using Javadoc
... edited Sep 9 '19 at 13:20
Andrew Tobilko
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answered Oct 5 '09 at 17:20
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How to use Greek symbols in ggplot2?
My categories need to be named with Greek letters. I am using ggplot2 , and it works beautifully with the data. Unfortunately I cannot figure out how to put those greek symbols on the x axis (at the tick marks) and also make them appear in the legend. Is there any way to do it?
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Passport.js - Error: failed to serialize user into session
I got a problem with the Passport.js module and Express.js.
6 Answers
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How to create loading dialogs in Android?
Those dark spinning progress dialogs in the Amazon and Engadget apps - are those standard in Android?
2 Answers
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SQLite - How do you join tables from different databases?
I have an application that uses a SQLite database and everything works the way it should. I'm now in the process of adding new functionalities that require a second SQLite database, but I'm having a hard time figuring out how to join tables from the different databases.
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