Function multiply

multiply<CItem = Item>(
    collectionId: string,
    itemId: ItemID,
    propertyName: Extract<keyof CItem>,
    value: number,
    options?: WeivDataOptions,
): Promise<null | CItem>
Type Parameters
- CItem = Item
Parameters
- collectionId: string
  The ID of the collection to multiply value.
- itemId: ItemID
  ItemID to filter the _id field when performing the operation.
- propertyName: Extract<keyof CItem>
  Property name for the multiply field.
- value: number
  Multiply current value by that much. (If you set it to 10 it will multiply it by 10 x*10)
- Optionaloptions: WeivDataOptions
  An object containing options to use when processing this operation.
Returns Promise<null | CItem>
Fulfilled - Updated item. Rejected - The error caused the rejection.

Description
You can use multiply function to multiply the value of a filed in an item.
- Defined in weivdata.d.ts:1334