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Array Query Predicate Operators

Array operators return data based on array conditions.

Name	Description
`$all`	Matches arrays that contain all elements specified in the query.
`$elemMatch`	Selects documents if at least one element in the array field matches all the specified `$elemMatch` conditions.
`$size`	Selects documents if the array field contains the specified number of elements.

For examples on querying array fields, see:

Query an Array
Query an Array of Embedded Documents

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Query Predicates

$all

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