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How to use Active Support core extensions
...load bigger chunks. If you want everything in one big gulp use...
For 1.9.2:
rvm 1.9.2
irb -f
irb(main):001:0> require 'active_support/all'
=> true
irb(main):002:0> 1.week.ago
=> 2010-11-14 17:56:16 -0700
irb(main):003:0>
For 1.8.7:
rvm 1.8.7
irb -f
irb(main):001:0> require '...
When to use Task.Delay, when to use Thread.Sleep?
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answered Nov 19 '13 at 23:44
Stephen ClearyStephen Cleary
349k6363 gold badges575575 silver badges699699 bronze badges
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Preserve colouring after piping grep to grep
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edited Feb 25 '10 at 1:38
answered Feb 24 '10 at 15:38
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How to get first record in each group using Linq
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128
var res = from element in list
group element by element.F1
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Extract only right most n letters from a string
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21 Answers
21
Active
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How do I create a MongoDB dump of my database?
...3 objects
log.analytics to dump/log/analytics.bson
234810 objects
DATABASE: blog to dump/blog
blog.posts to dump/log/blog.posts.bson
59 objects
DATABASE: admin to dump/admin
Source: http://www.mongodb.org/display/DOCS/Import+Export+Tools
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Get array of object's keys
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edited May 2 '19 at 19:57
adiga
25.6k77 gold badges4040 silver badges6161 bronze badges
a...
git pull error :error: remote ref is at but expected
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234
If you are running git under a file system that is not case sensitive (Windows or OS X) this w...
How do DATETIME values work in SQLite?
...Julian day numbers, the number of days since noon in Greenwich on November 24, 4714 B.C. according to the proleptic Gregorian calendar.
INTEGER as Unix Time, the number of seconds since 1970-01-01 00:00:00 UTC.
Applications can chose to store dates and times in any of these formats and fr...