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Mongoose's find method with $or condition does not work properly
...ram' as ObjectId type. To avoid exception,
// the 'param' must consist of more than 12 characters.
User.find( { $or:[ {'_id':objId}, {'name':param}, {'nickname':param} ]},
function(err,docs){
if(!err) res.send(docs);
});
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Display an array in a readable/hierarchical format
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425
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Why would one use nested classes in C++?
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142
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Why is unsigned integer overflow defined behavior but signed integer overflow isn't?
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Java EE web development, where do I start and what skills do I need? [closed]
...out JSP, Servlets, JSTL and EL where you can learn the essentials and find more useful links.
Tomcat seems to be a good web server for Java.
It is. It is however limited in capabilities. It's basically a barebones servlet container, implementing only the JSP/Servlet parts of the huge Java EE API....
How to get primary key column in Oracle?
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Thanks, Richie. One more question: how to encode 'P' ? I need to execute this with "EXECUTE IMMEDIATE". thnx again.
– Kirill A.
Jan 26 '12 at 10:34
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Where does Java's String constant pool live, the heap or the stack?
...h the other objects created by the application. This change will result in more data residing in the main Java heap, and less data in the permanent generation, and thus may require heap sizes to be adjusted. Most applications will see only relatively small differences in heap usage due to this chang...
Android - startActivityForResult immediately triggering onActivityResult
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How should I write tests for Forms in Django?
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@Daniel But integration tests are way more useful and more likely to catch bugs.
– wobbily_col
Feb 27 '14 at 11:57
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How do I modify fields inside the new PostgreSQL JSON datatype?
...one for json; casts are required to manipulate json values).
Merging 2 (or more) JSON objects (or concatenating arrays):
SELECT jsonb '{"a":1}' || jsonb '{"b":2}', -- will yield jsonb '{"a":1,"b":2}'
jsonb '["a",1]' || jsonb '["b",2]' -- will yield jsonb '["a",1,"b",2]'
So, setting a simple...