mongodb append item array code example
Example 1: mongodb add multiple element to array
db.students.update(
{ name: "joe" },
{ $push: { scores: { $each: [ 90, 92, 85 ] } } }
)
Example 2: insert item into list mongodb
db.col.update(
{ name: 'doc', 'list.id': 2 },
{$push: {'list.$.items': {id: 5, name: 'item5'}}}
)