mul

Multiplies a field by the specified amount.

If the field doesn't exist (either the document doesn't have it, or the operation is an upsert and a new document is created), the field is created with an initial value of 0.

Use of this operator with a field with a null value will generate an error.

Example

class User(
    val name: String,
    val price: Double,
)

collection.updateMany {
    User::price mul 2.0
}

External resources

• Official documentation