First - JSON

JSON syntax is a subset of the JavaScript object notation syntax:

• Data is in name-value pairs

    {
        "company": Volkswagen
    }
  

• Data is separated by commas

    {
        "company": "Volkswagen",
        "name": "Beetle"
    }
  

• Curly braces hold objects

• Square brackets hold arrays

    {
        "company": "Volkswagen",
        "Cars": [{
            "Color": "Red",
            "Color": "Grey",
            "Color": "Yellow"
        }]
    }
  

Cheatsheet

$gt:        Greather than
$gte:        Greather than or equal
$lt:        Lower than
$lte:        Lower than or equal
$all:        All
$in:        In (in the array)
$nin        Not in (in the array)
$ne:        Not equal

Sort

Append .sort() Append .sort()

db.hooker.find().sort( {number: 1 })