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NPM clean modules
...ry and will install packages with respect your package-lock.json file
More info: https://docs.npmjs.com/cli/ci.html
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MySQL: selecting rows where a column is null
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Info from http://w3schools.com/sql/sql_null_values.asp:
1) NULL values represent missing unknown data.
2) By default, a table column can hold NULL values.
3) NULL values are treated differently from other values...
Taking screenshot on Emulator from Android Studio
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Thanks for the info on the bug, that is what was keeping me from getting a screenshot.
– nasch
Feb 20 '15 at 17:12
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how does multiplication differ for NumPy Matrix vs Array classes?
...umpy array. If all you're doing is linear algebra, then by all means, feel free to use the matrix class... Personally I find it more trouble than it's worth, though.
For arrays (prior to Python 3.5), use dot instead of matrixmultiply.
E.g.
import numpy as np
x = np.arange(9).reshape((3,3))
y = np...
How to override to_json in Rails?
...erializable_hash instead of as_json. This will get your XML formatting for free too :)
This took me forever to figure out. Hope that helps someone.
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vector::at vs. vector::operator[]
...that says "code as sanctioned (guaranteed) by standard"; of course you are free to deliver in debug mode, but when doing cross platform development (including, but not exclusively, the case of same OS, but different compiler versions), relying on the standard is the best bet for releases, and debug ...
jQuery vs document.querySelectorAll
...lse positives when used in the way you propose. Nonetheless while your are free to up- or downvote for some nitpicky reason, I think it's not a reason to use rude language.
– Christoph
Jul 16 '13 at 16:39
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How to set default value to the input[type=“date”] [duplicate]
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I had to use 'yyyy-MM-dd' for more info: msdn.microsoft.com/en-us/library/8kb3ddd4(v=vs.110).aspx
– Jimmy
Jul 8 '14 at 14:58
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How to get a list of MySQL views?
...in every database on your instance:
SELECT TABLE_SCHEMA, TABLE_NAME
FROM information_schema.tables
WHERE TABLE_TYPE LIKE 'VIEW';
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How to get the mysql table columns data type?
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You can use the information_schema columns table:
SELECT DATA_TYPE FROM INFORMATION_SCHEMA.COLUMNS
WHERE table_name = 'tbl_name' AND COLUMN_NAME = 'col_name';
s...