MongoDB update operators (prefixed with $) modify specific fields of documents in place — setting values, incrementing numbers, manipulating arrays, and more. They're essential for updating documents correctly (without replacing the whole document) and enable atomic, targeted modifications.
Field update operators
db..({ : id }, {
: { : , : },
: { : },
: { : },
: { : , : - },
: { : },
: { : }, : { : },
: { : }
});
