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vim command to restructure/force text to 80 columns
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And it also works with visual selections. Ie something like: V}gq. In this way you see what you are going to format before actually formatting it.
– Plouff
Dec 2 '14 at 11:09
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How to clear variables in ipython?
...r @ErdemKAYA comment.
To erase a variable, use the magic command:
%reset_selective <regular_expression>
The variables that are erased from the namespace are the one matching the given <regular_expression>.
Therefore
%reset_selective -f a
will erase all the variables containing a...
Export Postgresql table data using pgAdmin
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Just right click on a table and select "backup". The popup will show various options, including "Format", select "plain" and you get plain SQL.
pgAdmin is just using pg_dump to create the dump, also when you want plain SQL.
It uses something like this: ...
How do I query using fields inside the new PostgreSQL JSON datatype?
... a comments below.
The answer to the original question in Postgres 9.3:
SELECT *
FROM json_array_elements(
'[{"name": "Toby", "occupation": "Software Engineer"},
{"name": "Zaphod", "occupation": "Galactic President"} ]'
) AS elem
WHERE elem->>'name' = 'Toby';
Advanced example:
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A CSS selector to get last visible div
A tricky CSS selector question, don't know if it's even possible.
10 Answers
10
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What port is a given program using? [closed]
...ool.
In Process Explorer: locate the process in question, right-click and select the TCP/IP tab. It will even show you, for each socket, a stack trace representing the code that opened that socket.
share
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Drawing a connecting line between two elements [closed]
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line1 = $('#line1');
div1 = $('#div1');
div2 = $('#div2');
I used selectors to select the two divs and line...
var pos1 = div1.position();
var pos2 = div2.position();
jQuery position() method allows us to obtain the current position of an element. For more information, visit https://api....
How to uncheck a radio button?
...nt need the each function; you could just chain the removeAttr call to the selector.
– cjstehno
Jan 22 '10 at 13:55
6
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python capitalize first letter only
...apitalize() capitalizes the first letter of a string but what if the first character is a integer?
8 Answers
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Intellij IDEA, format all code in a project
...can use the shortcut Ctrl+ALT+L (Windows/Linux) or ⌥⌘+L (MAC OS X) and select the Rearrange entries option to reformat the code in the current file or reformat a module or directory (after selecting more than one file).
You can also Right-click a module, file or directory from the context menu ...