Makes sure that the value of field under validation is a valid number. The validation will pass for floats too, since it uses typeof internally.

For strict integers, you must use the integer rule.

const rules = {
  game_points: 'number'

// or
const rules = {
  game_points: [

For customized build, you can import this rule as follows.

import { number } from 'indicative/builds/validations'