Prefix

Prefixes a string attribute value:

import { prefix } from 'dynamodb-toolbox/transformers/prefix'

const prefixedSchema = string().transform(prefix('PREFIX'))

The default delimiter is #, but you can override it:

import { prefix } from 'dynamodb-toolbox/transformers/prefix'

const prefixedSchema = string().transform(
  prefix('PREFIX', { delimiter: '.' })
)