Bulk.toString()¶

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Example

Bulk.toString()¶: 2.6 新版功能.

Returns as a string a JSON document that contains the number of operations and batches in the Bulk() object.

Example¶

The following initializes a Bulk() operations builder on the items collection, adds a series of write operations, and calls Bulk.toString() on the bulk builder object.

var bulk = db.items.initializeOrderedBulkOp();
bulk.insert( { item: "abc123", status: "A", defaultQty: 500, points: 5 } );
bulk.insert( { item: "ijk123", status: "A", defaultQty: 100, points: 10 } );
bulk.find( { status: "D" } ).removeOne();
bulk.toString();

The Bulk.toString() returns the following JSON document

{ “nInsertOps” : 2, “nUpdateOps” : 0, “nRemoveOps” : 1, “nBatches” : 2 }

参见

Bulk()

← Bulk.tojson() User Management Methods →