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Why are Perl 5's function prototypes bad?
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121
Prototypes aren't bad if used correctly. The difficulty is that Perl's prototypes don't work t...
PermGen elimination in JDK 8
...is is one of the new features of Java 8, part of JDK Enhancement Proposals 122:
Remove the permanent generation from the Hotspot JVM and thus the need to tune the size of the permanent generation.
The list of all the JEPs that will be included in Java 8 can be found on the JDK8 milestones page...
How to adjust text font size to fit textview
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answered Oct 24 '11 at 12:32
speedplanespeedplane
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Is it possible to insert multiple rows at a time in an SQLite database?
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Feb 15 '11 at 21:29
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Re-raise exception with a different type and message, preserving existing information
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edited Sep 2 at 12:01
answered Apr 27 '09 at 3:25
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Why does the JavaScript need to start with “;”?
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Nick Craver♦Nick Craver
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Android YouTube app Play Video Intent
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answered Sep 15 '12 at 17:03
Roger Garzon NietoRoger Garzon Nieto
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how to replicate pinterest.com's absolute div stacking layout [closed]
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answered Feb 29 '12 at 22:07
Bob.Bob.
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Format numbers to strings in Python
...nds = 6, 56, 33
f'{hours:02}:{minutes:02}:{seconds:02} {"pm" if hours > 12 else "am"}'
or the str.format function starting with 2.7:
"{:02}:{:02}:{:02} {}".format(hours, minutes, seconds, "pm" if hours > 12 else "am")
or the string formatting % operator for even older versions of Python, ...
Add new row to dataframe, at specific row-index, not appended?
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> insertRow(existingDF, newrow, r)
V1 V2 V3 V4
1 1 6 11 16
2 2 7 12 17
3 1 2 3 4
4 3 8 13 18
5 4 9 14 19
6 5 10 15 20
If speed is less important than clarity, then @Simon's solution works well:
existingDF <- rbind(existingDF[1:r,],newrow,existingDF[-(1:r),])
> existingDF
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