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Javascript reduce on array of objects
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edited Aug 30 '17 at 14:05
answered Apr 20 '11 at 14:34
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Performance - Date.now() vs Date.getTime()
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106
These things are the same (edit semantically; performance is a little better with .now()):
var...
Extract a substring from a string in Ruby using a regular expression
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answered Nov 6 '10 at 20:58
sepp2ksepp2k
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Edit a commit message in SourceTree Windows (already pushed to remote)
... is
not the most recent commit) using SourceTree for Windows version 1.5.2.0:
Step 1
Select the commit immediately before the commit that you want to edit.
For example, if I want to edit the commit with message "FOOBAR!" then I need
to select the commit that comes right before it:
Step 2
Right...
How to identify whether a file is normal file or directory
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answered Jun 5 '09 at 13:50
PTBNLPTBNL
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git log of a single revision
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edited Feb 14 '19 at 11:04
Fantastic Mr Fox
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Eclipse debugger always blocks on ThreadPoolExecutor without any obvious exception, why?
... Andersen
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answered Jun 9 '11 at 10:01
Vineet ReynoldsVineet Reynolds
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UIView's frame, bounds, center, origin, when to use what?
... bounds is using coordinate of the local view (therefore its x and y are 0, but not always), but it's still confusing to me when to use what.
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In Postgresql, force unique on combination of two columns
...ude null values.)" postgresql.org/docs/8.1/static/ddl-constraints.html#AEN2038
– ndequeker
Feb 3 '17 at 13:53
How can ...
Unique combination of all elements from two (or more) vectors
...aybe what you are after
> expand.grid(a,b)
Var1 Var2
1 ABC 2012-05-01
2 DEF 2012-05-01
3 GHI 2012-05-01
4 ABC 2012-05-02
5 DEF 2012-05-02
6 GHI 2012-05-02
7 ABC 2012-05-03
8 DEF 2012-05-03
9 GHI 2012-05-03
10 ABC 2012-05-04
11 DEF 2012-05-04
12 GHI 2012-05-04
13 AB...