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<h2>Document</h2>
<pre><code>
{
'_id': ObjectId('5ec72ffe00316be87cab3927'),
'code': Code('function () { return 22; }'),
'binary': BinData(1, '232sa3d323sd232a32sda3s2d3a2s1d23s21d3sa'),
'dbref': DBRef('namespace', ObjectId('5ec72f4200316be87cab3926'), 'db'),
'timestamp': Timestamp(0, 0),
'long': NumberLong(9223372036854775807),
'decimal': NumberDecimal('1000.55'),
'integer': 100,
'maxkey': MaxKey(),
'minkey': MinKey(),
'isodate': ISODate('2012-01-01T00:00:00.000Z'),
'regexp': RegExp('prism(js)?', 'i'),
'string': 'Hello World',
'numberArray': [1, 2, 3],
'stringArray': ['1','2','3'],
'randomKey': null,
'object': { 'a': 1, 'b': 2 },
'max_key2': MaxKey(),
'number': 1234,
'invalid-key': 123,
noQuotesKey: 'value',
}
</code></pre>
<h2>Query</h2>
<pre><code>
db.users.find({
_id: { $nin: ObjectId('5ec72ffe00316be87cab3927') },
age: { $gte: 18, $lte: 99 },
field: { $exists: true }
})
</code></pre>
<h2>Update</h2>
<pre><code>
db.users.updateOne(
{
_id: ObjectId('5ec72ffe00316be87cab3927')
},
{
$set: { age: 30 },
$inc: { updateCount: 1 },
$push: { updateDates: new Date() }
}
)
</code></pre>
<h2>Aggregate</h2>
<pre><code>
db.orders.aggregate([
{ $sort : { age : -1 } },
{ $project : { age : 1, status : 1, name : 1 } },
{ $limit: 5 }
])
</code></pre>
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