Validates the property to be a valid number. The string representation of a number will be casted to a number data type. For example: "22" becomes 22.

import { schema } from '@ioc:Adonis/Core/Validator'
marks: schema.number()

Mark as optional

You can mark the property to be optional by chaining the optional method. Only the undefined values are considered optional. We treat null as a valid value and it will fail the number validation.

marks: schema.number.optional()

Define additional rules

You can define an array of additional rules as the first parameter.

import { schema, rules } from '@ioc:Adonis/Core/Validator'
marks: schema.number([
rules.range(10, 100),