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Is there a way to automate the android sdk installation?
...of
the numbers returned by android list sdk (i.e. 1, also know as package index)
add-on
doc
extra
platform
platform-tool
sample
source
system-image
tool
or can be one or more specific identifiers. For instance, if you just want to download a small set of specific packages, you could do this:
$ and...
Query for array elements inside JSON type
...the new "contains" operator @> (best in combination with a matching GIN index on the expression data->'objects'):
CREATE INDEX reports_data_gin_idx ON reports
USING gin ((data->'objects') jsonb_path_ops);
SELECT * FROM reports WHERE data->'objects' @> '[{"src":"foo.png"}]';
Since th...
How to execute XPath one-liners from shell?
...bute' file.xml
xmlstarlet sel -t -v "//element/@attribute" file.xml
xpath -q -e '//element/@attribute' file.xml
xidel -se '//element/@attribute' file.xml
saxon-lint --xpath '//element/@attribute' file.xml
xmlstarlet page
man xmllint
xpath page
xml_grep
xidel
saxon-lint
.
...
How does python numpy.where() work?
...f True/False values, not a single value.
Furthermore, numpy arrays can be indexed by boolean arrays. E.g. x[x>5] yields [6 7 8], in this case.
Honestly, it's fairly rare that you actually need numpy.where but it just returns the indicies where a boolean array is True. Usually you can do what y...
When are C++ macros beneficial? [closed]
...ode fragments. Thus you can define a foreach macro:
#define foreach(list, index) for(index = 0; index < list.size(); index++)
And use it as thus:
foreach(cookies, i)
printf("Cookie: %s", cookies[i]);
Since C++11, this is superseded by the range-based for loop.
...
Multiple types were found that match the controller named 'Home'
... "{controller}/{action}/{id}",
new { controller = "Home", action = "Index", id = UrlParameter.Optional },
new[] { "AppName.Controllers" }
);
and in your ~/Areas/Admin/AdminAreaRegistration.cs:
context.MapRoute(
"Admin_default",
"Admin/{controller}/{action}/{id}",
new { acti...
Installing older version of R package
...oint', 'devtools'), c('0.3.3', '1.6.1'))
That has the advantage of not requiring Rtools to install binary packages on Windows, but only works going back to 2014-09-17 (when MRAN was launched).
To install an older version from the command line (outside of R):
You can also install a package by usi...
Java: Best way to iterate through a Collection (here ArrayList)
...
The first one is useful when you need the index of the element as well. This is basically equivalent to the other two variants for ArrayLists, but will be really slow if you use a LinkedList.
The second one is useful when you don't need the index of the element but ...
mongodb find by multiple array items
...nother way to do this in mangodb support page docs.mongodb.org/manual/core/indexes/#indexes-on-sub-documents and docs.mongodb.org/manual/core/indexes/#multikey-indexes
– Vivek Bajpai
Apr 1 '13 at 12:49
...
Oracle TNS names not showing when adding new connection to SQL Developer
I'm trying to connect to an oracle database with SQL Developer.
7 Answers
7
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