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Control the dashed border stroke length and distance between strokes
...n't know any fine tuning on it, you should work with images as recommended by Ham.
Reference: http://www.w3.org/TR/CSS2/box.html#border-style-properties
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How do you delete a column by name in data.table?
...repl() initally and it didn't work, as data.table columns can't be indexed by a logical vector. But I now realize that grepl() can be made to work by wrapping it with which(), so that it returns an integer vector.
– Josh O'Brien
Feb 8 '12 at 23:38
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List columns with indexes in PostgreSQL
...NY(ix.indkey)
and t.relkind = 'r'
and t.relname like 'test%'
order by
t.relname,
i.relname;
table_name | index_name | column_name
------------+------------+-------------
test | pk_test | a
test | pk_test | b
test2 | uk_test2 | b
test2 | uk_test2 ...
How to get the sizes of the tables of a MySQL database?
...th) / 1024 / 1024), 2) `Size in MB`
FROM information_schema.TABLES
ORDER BY (data_length + index_length) DESC;
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Access nested dictionary items via a list of keys?
...ists or a mix of dictionaries and lists, so the names should really be get_by_path() and set_by_path():
from functools import reduce # forward compatibility for Python 3
import operator
def get_by_path(root, items):
"""Access a nested object in root by item sequence."""
return reduce(opera...
Why am I seeing an “origin is not allowed by Access-Control-Allow-Origin” error here? [duplicate]
...nt to make a request to example.com => you can.
Javascript is limited by the "same origin policy" for security reasons so that a malicious script cannot contact a remote server and send sensitive data.
jsonp is a different way to use javascript. You make a request and results are encapsulated ...
JOIN two SELECT statement results
...) AS [# Late]
FROM
(SELECT ks, COUNT(*) AS '# Tasks' FROM Table GROUP BY ks) t1
LEFT JOIN
(SELECT ks, COUNT(*) AS '# Late' FROM Table WHERE Age > Palt GROUP BY ks) t2
ON (t1.ks = t2.ks);
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What is the “realm” in basic authentication
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From RFC 1945 (HTTP/1.0) and RFC 2617 (HTTP Authentication referenced by HTTP/1.1)
The realm attribute (case-insensitive) is required for all
authentication schemes which issue a challenge. The realm value
(case-sensitive), in combination with the canonical root URL of the
server bein...
Difference between the Apache HTTP Server and Apache Tomcat? [closed]
...rated into Java code (HttpServlet), which is then compiled to .class files by the server and executed by the Java virtual machine.
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Accessing nested JavaScript objects and arays by string path
...this based on some similar code I already had, it appears to work:
Object.byString = function(o, s) {
s = s.replace(/\[(\w+)\]/g, '.$1'); // convert indexes to properties
s = s.replace(/^\./, ''); // strip a leading dot
var a = s.split('.');
for (var i = 0, n = a.length; i...