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handlerbars.js check if list is empty
... DrejcDrejc
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How to check if a column exists in Pandas
... not present in df
– Robvh
Feb 5 at 10:59
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leading zeros in rails
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MySQL: Insert record if not exists in table
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+----+--------+-----------+------+
And so on...
Update:
To prevent #1060 - Duplicate column name error in case two values may equal, you must name the columns of the inner SELECT:
INSERT INTO table_listnames (name, address, tele)
SELECT * FROM (SELECT 'Unknown' AS name, 'Unknown' AS address,...
Float vs Decimal in ActiveRecord
... a Float. It's like a scientific notation for binary (something like +1.43*10^2). Because of that, it is impossible to store fractions and decimals in Float exactly.
That's why there is a Decimal format. If you do this:
irb:001:0> "%.47f" % (1.0/10)
=> "0.10000000000000000555111512312578270...
Filter dict to contain only certain keys?
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answered Aug 6 '10 at 0:22
user395760user395760
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How do I get the height and width of the Android Navigation Bar programmatically?
...ons?
– Ben Pearson
Oct 30 '14 at 19:10
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Note that this piece of code does not return 0 on devic...
How would you compare jQuery objects?
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answered Mar 13 '10 at 2:01
Christian C. SalvadóChristian C. Salvadó
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How to nicely format floating numbers to String without unnecessary decimal 0?
...e numbers. Further it will return a String in exponential form, e.g. "1.0E10", for large values, which is probably not what the asker wants. Use %f instead of %s in the second format string to fix that.
– jlh
Feb 3 '14 at 12:48
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Connect to a locally built Jekyll Server using mobile devices in the LAN
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