'mongodb , how to push data to array in object?

{
  name: "jeet",
  address: "Highway 71",
  data: {
    connnection: 2,
    frds: [
      // push here.
      {
        id: 8349,
        name: "manoj"
      },
      {
        id: 3232,
        name: "magan"
      }
    ]
  }
}

how to add value in array that belongs to an object .

node.jsarraysmongodbobject


Solution 1:[1]

Query1

  • push at position 0 (start of the array)

Playmongo

update(
{"name": {"$eq": "jeet"}},
{"$push": 
 {"data.frds": {"$each": [{"id": 10, "name": "john"}], "$position": 0}}})

Query2

  • you can do it also with update pipeline, to add on start
  • puts the new element it at first of the array

Playmongo

update(
{"name": {"$eq": "jeet"}},
[{"$set": 
   {"data.frds": 
     {"$concatArrays": [[{"id": 10, "name": "john"}], "$data.frds"]}}}])

Solution 2:[2]

you can use $push method working example

db.collection.update(
        { _id : ObjectId("yourid")}, //in your case use whatever is unique
        { $push: {"data.frds": {
            id:value,
            name: value2
        }}}
    )

Sources

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Source: Stack Overflow

Solution Source
Solution 1
Solution 2

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