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How do I convert a float number to a whole number in JavaScript?
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15 Answers
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Matplotlib scatterplot; colour as a function of a third variable
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157
There's no need to manually set the colors. Instead, specify a grayscale colormap...
import n...
How to round an average to 2 decimal places in PostgreSQL?
...ision is only available for numeric.
regress=> SELECT round( float8 '3.1415927', 2 );
ERROR: function round(double precision, integer) does not exist
regress=> \df *round*
List of functions
Schema | Name | Result data type | Argument data types | Type
--...
How do I get the current Date/time in DD/MM/YYYY HH:MM format?
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190
The formatting can be done like this (I assumed you meant HH:MM instead of HH:SS, but it's eas...
Postgresql GROUP_CONCAT equivalent?
...starting point (version 8.4+ only):
SELECT id_field, array_agg(value_field1), array_agg(value_field2)
FROM data_table
GROUP BY id_field
array_agg returns an array, but you can CAST that to text and edit as needed (see clarifications, below).
Prior to version 8.4, you have to define it yourself p...
Solving a “communications link failure” with JDBC and MySQL [duplicate]
...ddress" attribute or change it to one of the following IPs:
bind-address="127.0.0.1"
or
bind-address="0.0.0.0"
commenting out "skip-networking"
If there is a "skip-networking" line in your MySQL config file, make it comment by adding "#" sign at the beginning of that line.
change "wait_time...
In PyCharm, how to go back to last location?
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11 Answers
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Why are `private val` and `private final val` different?
...that private val and private final val are same, until I saw section 4.1 in Scala Reference:
2 Answers
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Perl build, unit testing, code coverage: A complete working example
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105
It took me a while and it also took me taking small snippets from a number of different source...
JavaScript curry: what are the practical applications?
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15 Answers
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