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What is the difference between Ruby 1.8 and Ruby 1.9
... character strings.
Ruby 1.9
irb(main):001:0> ?c
=> "c"
Ruby 1.8.6
irb(main):001:0> ?c
=> 99
String index.
Ruby 1.9
irb(main):001:0> "cat"[1]
=> "a"
Ruby 1.8.6
irb(main):001:0> "cat"[1]
=> 97
{"a","b"} No Longer Supported
Ruby 1.9
irb(main):002:0> {1,2}...
Will strlen be calculated multiple times if used in a loop condition?
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edited Jul 6 '12 at 15:45
answered Jul 6 '12 at 15:24
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Crontab Day of the Week syntax
In crontab does the Day of the Week field run from 0 - 6 or 1 -7 ?
3 Answers
3
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Shuffle two list at once with same order
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6 Answers
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Sort rows in data.table in decreasing order on string key `order(-x,v)` gives error on data.table 1.
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Update
data.table v1.9.6+ now supports OP's original attempt and the following answer is no longer necessary.
You can use DT[order(-rank(x), y)].
x y v
1: c 1 7
2: c 3 8
3: c 6 9
4: b 1 1
5: b 3 2
6: b 6 3
7: a 1 4
8: a 3 5
9: a 6 6
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Left align and right align within div in Bootstrap
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6 Answers
6
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Getting key with maximum value in dictionary?
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632
You can use operator.itemgetter for that:
import operator
stats = {'a':1000, 'b':3000, 'c': 1...
VB.NET - How to move to next item a For Each Loop?
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6 Answers
6
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What is phtml, and when should I use a .phtml extension rather than .php?
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6 Answers
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