Searching in array fields
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1) exact match

    db.movieDetails.find({countries: ["USA", "France"]})

    db.movieDetails.find({countries: ["France", "USA"]})    // the order matters


2) looking for an element in an array

    db.movieDetails.find({actors: "Jim Carrey"})


3) looking for an element in a specific position in an array

    db.movieDetails.find({actors: "Jeff Bridges"})

    db.movieDetails.find({"actors.0": "Jeff Bridges"})