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Retrieve only the queried element in an object array in MongoDB collection
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MongoDB 2.2's new $elemMatch projection operator provides another way to alter the returned document to contain only the first matched shapes element:
db.test.find(
{"shapes.color": "red"},
{_id: 0, shapes: {$elemMatch: {color: "red"}}});
Returns:
{"shapes" : [{"...
Display Animated GIF
...lay animated GIF images in my aplication.
As I found out the hard way Android doesn't support animated GIF natively.
30 Ans...
phantomjs not waiting for “full” page load
...tomJS v1.4.1 to load some web pages. I don't have access to their server-side, I just getting links pointing to them. I'm using obsolete version of Phantom because I need to support Adobe Flash on that web pages.
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How do I POST JSON data with cURL?
...st my Spring REST application with cURL. I wrote my POST code at the Java side. However, I want to test it with cURL. I am trying to post a JSON data. Example data is like this:
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.htaccess: Invalid command 'RewriteEngine', perhaps misspelled or defined by a module not included i
...find it in a folder called conf, config or something along those lines)
Inside the httpd.conf file uncomment the line LoadModule rewrite_module modules/mod_rewrite.so (remove the pound '#' sign from in front of the line)
Also find the line ClearModuleList is uncommented then find and make sure that ...
How do I access an access array item by index in handlebars?
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Try this:
<ul id="luke_should_be_here">
{{people.1.name}}
</ul>
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Targeting only Firefox with CSS
...s as of Firefox 59, released March 2018: bugzilla.mozilla.org/show_bug.cgi?id=1035091
– Jordan Gray
Dec 17 '19 at 17:16
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What is the maximum length of a table name in Oracle?
... VARCHAR2(1)
COLUMN_ID NUMBER
DEFAULT_LENGTH NUMBER
DATA_DEFAULT LONG ...
What is the purpose of Flask's context stacks?
...n "Application Dispatching" example:
from werkzeug.wsgi import DispatcherMiddleware
from frontend_app import application as frontend
from backend_app import application as backend
application = DispatcherMiddleware(frontend, {
'/backend': backend
})
Notice that there are two completely d...
Android Drawing Separator/Divider Line in Layout?
I would like to draw a line right in the middle of a layout and use it as a separator of other items like TextView. Is there a good widget for this. I don't really want to use an image as it would be hard to match the other components to it. And I want it to be relatively positioned as well. Than...