mongoose count documents
await model.countDocuments({ name: 'Florin' })mongoose count documents
await model.countDocuments({ name: 'Florin' })mongo count
db.collection.countDocuments( <query>, <options> )mongoose count
model.estimatedDocumentCount();mongoose select
// include a and b, exclude other fields
query.select('a b');
// Equivalent syntaxes:
query.select(['a', 'b']);
query.select({ a: 1, b: 1 });
// exclude c and d, include other fields
query.select('-c -d');
// Use `+` to override schema-level `select: false` without making the
// projection inclusive.
const schema = new Schema({
foo: { type: String, select: false },
bar: String
});
// ...
query.select('+foo'); // Override foo's `select: false` without excluding `bar`
// or you may use object notation, useful when
// you have keys already prefixed with a "-"
query.select({ a: 1, b: 1 });
query.select({ c: 0, d: 0 });countDocuments mongoose
Adventure.countDocuments({ type: 'jungle' }, function (err, count) {
console.log('there are %d jungle adventures', count);
});Copyright © 2021 Codeinu
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