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Mongo: find items that don't have a certain field
...rpret it as the field has to be equal to null and not missing. This is actually unexpected behavior, because you wouldn't be able to do the same for 0 (which is also false), so null is kind of the exception here. Therefore, best practice is the more readable answer using $exists: false which is not ...
How to style a JSON block in Github Wiki?
...So, I tried representing the JSON in different Language syntax formats.But all time favorites are Perl, js, python, & elixir.
This is how it looks.
The following screenshots are from the Gitlab in a markdown file.
This may vary based on the colors using for syntax in MARKDOWN file...
Can anybody push to my project on github?
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No, all repositories are read-only for anonymous users.
By default only the owner of the repository has write access. If you can push to your own repo, it's because you are using one of the supported authentification methods (HT...
MySQL ON DUPLICATE KEY UPDATE for multiple rows insert in single query
... What if you want to update few columns? Replace will update all.
– imVJ
Sep 9 '16 at 10:27
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show 1 more comment
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Mocking objects with Moq when constructor has parameters
...e.Specifications, using an automocking container makes it easier to test smaller surface areas. Suppose Andrew needed to test a method in CustomerSyncEngine that only uses ICrmProvider with traditional mocking implementations must be provided for all 3 interfaces whereas an autmocking container woul...
Java “user.dir” property - what exactly does it mean?
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Is that mean that on tomcat configuration for all java versions if user.dir is pointing to /usr/share/tomcat and in config we add something like this: file:./config then it will be pointing to /usr/share/tomcat/config always?
– Marcin Kapusta
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Difference between jQTouch and jQuery mobile
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jQtouch is optimized for WebKit, jQuery Mobile is looking to support all mobile devices; that is my understanding
some good info here
http://jquerymobile.com/strategy/
and here
http://news.ycombinator.com/item?id=1602169
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PHP - include a php file and also send query parameters
...luded PHP file which will then be interpreted. There is no scope change at all, so you can still access $someVar in the included file directly (even though you might consider a class based structure where you pass $someVar as a parameter or refer to a few global variables).
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Increasing nesting function calls limit
There is one very bad limit in PHP: if you call some function a1() that calls a2(), that calls a3... so when a99() will call a100() you will see
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How to make a class JSON serializable
...t;>> magic(f)
'{"fname": "/foo/bar"}'
In that case you can merely call json.dumps(f.__dict__).
If you want more customized output then you will have to subclass JSONEncoder and implement your own custom serialization.
For a trivial example, see below.
>>> from json import JSONE...