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How to unset a JavaScript variable?
...ions to delete as with any language, if you care enough you should read:
https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Operators/Special_Operators/delete_Operator
http://www.ecma-international.org/publications/files/ECMA-ST/ECMA-262.pdf
...
Hiding elements in responsive layout?
...4-alpha.getbootstrap.com/layout/responsive-utilities/
On Bootstrap 4.3.x: https://getbootstrap.com/docs/4.3/utilities/display/
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How do I rename a column in a SQLite database table?
...ME COLUMN fails with an error and no changes are applied.
Image source: https://www.sqlite.org/images/syntax/alter-table-stmt.gif
Example:
CREATE TABLE tab AS SELECT 1 AS c;
SELECT * FROM tab;
ALTER TABLE tab RENAME COLUMN c to c_new;
SELECT * FROM tab;
db-fiddle.com demo
Android Suppor...
Django: multiple models in one template using forms [closed]
...simplify the case of working with related objects via a foreign key".
See https://docs.djangoproject.com/en/dev/topics/forms/modelforms/#inline-formsets
How can I select rows with most recent timestamp for each key value?
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Django filter queryset __in for *every* item in list
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in iPhone App How to detect the screen resolution of the device
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How to write a multidimensional array to a text file?
...) takes an optional parameter
newline='\n' to allow multi-line output.
https://docs.scipy.org/doc/numpy-1.13.0/reference/generated/numpy.savetxt.html
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Vagrant reverse port forwarding?
...0 on your host machine...
echo 'Hello, guest!' > hello
python -m SimpleHTTPServer 8000
You can access it from inside the Vagrant VM at 10.0.2.2:8000 (provided 10.0.2.2 is the ip of the guest's default gateway):
vagrant ssh
curl http://10.0.2.2:8000/hello # Outputs: Hello, guest!
To find the...
How to remove the arrow from a select element in Firefox
...Live example: http://jsfiddle.net/joaocunha/RUEbp/1/
More on the subject: https://gist.github.com/joaocunha/6273016
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