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Retrieve only the queried element in an object array in MongoDB collection
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db.test.find({"shapes.color": "red"}, {_id: 0, 'shapes.$': 1});
MongoDB 3.2 Update
Starting with the 3.2 release, you can use the new $filter aggregation operator to filter an array during projection, which has the benefit of including all matches, instead of just the first one.
db.test.aggrega...
Failed to build gem native extension (installing Compass)
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23 Answers
23
Active
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Difference between “git checkout ” and “git checkout -- ”
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edited Sep 8 '16 at 13:47
answered Jul 3 '11 at 4:51
z...
Move an item inside a list?
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answered Jul 3 '10 at 23:15
David ZDavid Z
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Rails 3 check if attribute changed
Need to check if a block of attributes has changed before update in Rails 3.
5 Answers
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How do I base64 encode (decode) in C?
..., 'v',
'w', 'x', 'y', 'z', '0', '1', '2', '3',
'4', '5', '6', '7', '8', '9', '+', '/'};
static char *decoding_table = NULL;
static int mod_table[] = {0, 2, 1};
char *base64_encode(const unsigned char *data,
size_t ...
how to split the ng-repeat data with three columns using bootstrap
...ce(i, i+size));
}
return newArr;
}
$scope.chunkedData = chunk(myData, 3);
Then your view would look like this:
<div class="row" ng-repeat="rows in chunkedData">
<div class="span4" ng-repeat="item in rows">{{item}}</div>
</div>
If you have any inputs within the ng-...
How to detect the currently pressed key?
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163
if ((Control.ModifierKeys & Keys.Shift) != 0)
This will also be true if Ctrl+Shift is dow...