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How does one use rescue in Ruby without the begin and end block
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3
Also, class definitions, module definitions and (I think) do/end block literals form implicit exception blocks.
– Jör...
Android Gradle plugin 0.7.0: “duplicate files during packaging of APK”
...ccording to comment 14 in this bug: https://issuetracker.google.com/issues/36982149#comment14 this is a bug in v0.7.0 of the Android Gradle plugin, and is due to be fixed soon in 0.7.1.
Here are the notes from that bug about the addition for 0.7.1:
0.7.1 is out with the fix for this.
The DSL to e...
To find whether a column exists in data frame or not
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answered Apr 23 '12 at 7:03
user554546user554546
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Accessing inactive union member and undefined behavior?
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131
+100
The con...
Is python's sorted() function guaranteed to be stable?
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answered Dec 16 '09 at 15:36
Alex MartelliAlex Martelli
725k148148 gold badges11261126 silver badges13241324 bronze badges
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Clustered vs Non-Clustered
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edited Mar 17 '14 at 13:56
answered Sep 30 '11 at 3:47
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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
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inserting characters at the start and end of a string
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133
Strings are immutable so you can't insert characters into an existing string. You have to creat...
Linq list of lists to single list
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330
You want to use the SelectMany extension method.
var residences = details.SelectMany(d => ...
How to change column datatype from character to numeric in PostgreSQL 8.4
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