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How to select only the first rows for each unique value of a column
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126
A very simple answer if you say you don't care which address is used.
SELECT
CName, MIN(A...
Restore file from old commit in git
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edited Jan 9 '13 at 18:23
Colin R
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an...
Declaring abstract method in TypeScript
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The name property is marked as protected. This was added in TypeScript 1.3 and is now firmly established.
The makeSound method is marked as abstract, as is the class. You cannot directly instantiate an Animal now, because it is abstract. This is part of TypeScript 1.6, which is now officially l...
i18n Pluralization
I want to be able to translate pluralized strings in i18n in rails. A string can be :
7 Answers
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Can inner classes access private variables?
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123
An inner class is a friend of the class it is defined within.
So, yes; an object of type Outer...
What is the Linux equivalent to DOS pause?
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read does this:
user@host:~$ read -n1 -r -p "Press any key to continue..." key
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user@host:~$
The -n1 specifies that it only waits for a single character. The -r puts it into raw mode, which is necessary because otherwise, if you press something like bac...
Converting numpy dtypes to native python types
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12 Answers
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Selecting/excluding sets of columns in pandas [duplicate]
...ed OR Select the ones you need
# Using DataFrame.drop
df.drop(df.columns[[1, 2]], axis=1, inplace=True)
# drop by Name
df1 = df1.drop(['B', 'C'], axis=1)
# Select the ones you want
df1 = df[['a','d']]
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How can I get a JavaScript stack trace when I throw an exception?
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+100
Edit 2 (2017):
In all modern browsers you can simply call: console.trace(); (MDN Reference)
Edit 1 (2013):
A better (and simpler)...