Answers for "mongodb check if collection exists"

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mongodb check if collection exists

db.collectionNames(collName, function(err, names) {
    console.log('Exists: ', names.length > 0);
});

// MongoDB 2.x:
db.listCollections({name: collName})
    .next(function(err, collinfo) {
        if (collinfo) {
            // The collection exists
        }
    });

Posted by: Guest on April-28-2021

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