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Float vs Decimal in ActiveRecord
... you do this:
irb:001:0> "%.47f" % (1.0/10)
=> "0.10000000000000000555111512312578270211815834045" # not "0.1"!
whereas if you just do
irb:002:0> (1.0/10).to_s
=> "0.1" # the interprer rounds the number for you
So if you are dealing with small fractions, like compounding interests...
postgresql COUNT(DISTINCT …) very slow
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edited Oct 15 '16 at 21:51
answered Feb 6 '13 at 15:17
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Referring to a file relative to executing script
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Merlyn Morgan-Graham
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answered Jul 12 '11 at 5:04
Ignacio Vaz...
Difference between var_dump,var_export & print_r
...hagphihag
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51
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“ValueError: zero length field name in format” error in Python 3.0,3.1,3.2
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edited Apr 26 '15 at 22:12
answered Mar 27 '11 at 4:01
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Reference list item by index within Django template?
... Mike DeSimoneMike DeSimone
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47
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How do I find all installed packages that depend on a given package in NPM?
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154
You're looking for https://docs.npmjs.com/cli/ls
For example, to see which packages depend on ...
How do I determine scrollHeight?
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edited Jun 12 '15 at 11:57
groovecoder
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answered Sep ...
How to calculate “time ago” in Java?
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edited Nov 28 '16 at 8:15
jdersen
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answered Oct 4 '10 at 21:32
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