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Bulk.toString()
Returns as a string a JSON document that contains the number of operations and batches in the 以字符串形式返回一个JSON文档，该文档包含Bulk() object.Bulk()对象中的操作数和批处理数。
The following initializes a 下面将初始化Bulk() operations builder on the items collection, adds a series of write operations, and calls Bulk.toString() on the bulk builder object.items集合上的Bulk()操作生成器，添加一系列写操作，并对批量生成器对象调用Bulk.toString()。
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 documentBulk.toString()返回以下JSON文档
{ "nInsertOps" : 2, "nUpdateOps" : 0, "nRemoveOps" : 1, "nBatches" : 2 }