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Rounding float in Ruby
... "2.35"
If you want to store it rounded, you can use
>> (2.3465*100).round / 100.0
=> 2.35
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What is the PostgreSQL equivalent for ISNULL()
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460
SELECT CASE WHEN field IS NULL THEN 'Empty' ELSE field END AS field_alias
Or more idiomatic:
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Get time difference between two dates in seconds
... = new Date();
var seconds = (endDate.getTime() - startDate.getTime()) / 1000;
Or even simpler (endDate - startDate) / 1000 as pointed out in the comments unless you're using typescript.
The explanation
You need to call the getTime() method for the Date objects, and then simply subtract them and ...
.NET List Concat vs AddRange
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answered Sep 19 '08 at 7:17
Greg BeechGreg Beech
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JavaScript/regex: Remove text between parentheses
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answered Nov 27 '10 at 15:55
thejhthejh
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MySQLDump one INSERT statement for each data row
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answered Sep 15 '12 at 17:01
driisdriis
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How to have multiple data-bind attributes on one element?
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edited Oct 12 '14 at 22:07
Jeroen
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Why does instanceof return false for some literals?
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10 Answers
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How to get the last element of an array in Ruby?
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205
Use -1 index (negative indices count backward from the end of the array):
a[-1] # => 5
b[-1...
jQuery “Does not have attribute” selector?
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edited May 29 at 15:10
Jeromy French
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