Key Takeaways About $inc Operator

• The $inc operator in MongoDB increments the value of a field by a specified amount.
• It can be used in embedded documents or arrays using dot notation.
• The $inc operator can be used in methods like update(), updateOne() according to requirements.
• Use of the $inc operator on a field with a null value will generate an error.
• It is an atomic operation within a single document.

MongoDB $inc or increment operator is a type of field update operator. $inc operator increases the values of the fields to the specified amount or increases the field by the given value.

Important Points

• This operator accepts positive and negative values.
• If the given field does not exist, then this operator will create a field and set the value of that field.
• This operator will generate an error, if you use this operator with a null value field.
• It is an atomic operation in a single document.