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What's the 'Ruby way' to iterate over two arrays at once
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>> @budget = [ 100, 150, 25, 105 ]
=> [100, 150, 25, 105]
>> @actual = [ 120, 100, 50, 100 ]
=> [120, 100, 50, 100]
>> @budget.zip @actual
=> [[100, 120], [150, 100], [25, 50], [105, 100]]
>> @budget.zip(@actual).each do ...
How to use php serialize() and unserialize()
...e this
$multidimentional_array= array(
array(
array("rose", 1.25, 15),
array("daisy", 0.75, 25),
array("orchid", 4, 7)
),
array(
array("rose", 1.25, 15),
array("daisy", 0.75, 25),
array("orchid", 5, 7)
),
array(
arr...
How to avoid isset() and empty()
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answered Dec 25 '09 at 5:57
deceze♦deceze
454k7373 gold badges641641 silver badges784784 bronze badges
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Loop through all nested dictionary values?
...tti Haapala
109k2121 gold badges223223 silver badges258258 bronze badges
answered May 25 '12 at 14:47
ScharronScharron
14.4k44 gol...
Run Cron job every N minutes plus offset
... and 40 minutes after -- which is the same as every 20 minutes. However, */25 * * * * will run at 0 minutes, 25 minutes after, and 50 minutes after -- which is not the same as every 25 minutes. That's why it's usually desirable to use a step value in the minute field that divides evenly into 60.
So...
How to prepend a string to a column value in MySQL?
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edited Mar 25 '09 at 10:06
answered Mar 25 '09 at 9:18
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Creating threads - Task.Factory.StartNew vs new Thread()
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answered Oct 25 '11 at 13:13
sanosdolesanosdole
2,3891313 silver badges1717 bronze badges
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Multiplication on command line terminal
...n Arithmetic Expansion $(( )) to do some simple maths
$ echo "$((5 * 5))"
25
Check the Shell Arithmetic section in the Bash Reference Manual for a complete list of operators.
For sake of completeness, as other pointed out, if you need arbitrary precision, bc or dc would be better.
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Using MemoryStore in production
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edited Apr 25 '14 at 21:41
pixelfreak
16.7k1111 gold badges8080 silver badges104104 bronze badges
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