Syntax:
{$cond: [<expression>,
<true>, <false>] }
Example
as given below
{ "$project": {
"name": 1,
"customer":
{
"$cond": {
"if": { "$eq": [ "$Age", 25 ] },
"then": "YG",
"else": {
"$cond": {
"if": { "$eq": ["$Age", 45]},
"then: "MYG",
"else": "SCZ"
}
}
}
}
}},
{ "$sort":
{ CreatedDate: 1 }}
]);
For more detail, go to https://docs.mongodb.com/
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