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cursor.map()

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cursor.map(function)

Applies function to each document visited by the cursor and collects the return values from successive application into an array.

The cursor.map() method has the following parameter:

Parameter Type Description
function function A function to apply to each document visited by the cursor.

Example

db.users.find().map( function(u) { return u.name; } );

参见

cursor.forEach() for similar functionality.