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Difference between Activity and FragmentActivity
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2 Answers
2
Active
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Get Unix Epoch Time in Swift
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162
You can simply use NSDate's timeIntervalSince1970 function.
let timeInterval = NSDate().timeIn...
Active Record - Find records which were created_at before today
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Using ActiveRecord the standard way:
MyModel.where("created_at < ?", 2.days.ago)
Using the underlying Arel interface:
MyModel.where(MyModel.arel_table[:created_at].lt(2.days.ago))
Using a thin layer over Arel:
MyModel.where(MyModel[:created_at] < 2.days.ago)
Using squeel:
MyModel.w...
Why is a boolean 1 byte and not 1 bit of size?
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12 Answers
12
Active
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Scala: Nil vs List()
...intln (Nil equals List())
true
scala> System.identityHashCode(Nil)
374527572
scala> System.identityHashCode(List())
374527572
Nil is more idiomatic and can be preferred in most cases.
Questions?
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Wget output document and headers to STDOUT
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answered Apr 8 '14 at 2:27
Joseph LustJoseph Lust
16.4k77 gold badges6969 silver badges7070 bronze badges
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How can I change a file's encoding with vim?
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262
From the doc:
:write ++enc=utf-8 russian.txt
So you should be able to change the encodin...
Eclipse, regular expression search and replace
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227
Yes, "( )" captures a group. you can use it again with $i where i is the i'th capture group.
S...
How to trim leading and trailing white spaces of a string?
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269
For example,
package main
import (
"fmt"
"strings"
)
func main() {
s := "\t Hel...
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 '...