Types

Load the types stdlib when the input shape is mixed and you need defensive checks or simple conversions.

import { types } from 'bonsai-js/stdlib'
expr.use(types)

Transform	Example	Result
`isString`	`customer.email \|> isString`	`true`
`isNumber`	`order.total \|> isNumber`	`true`
`isArray`	`cart.items \|> isArray`	`true`
`isNull`	`customer.nickname \|> isNull`	`true`
`toBool`	`featureFlag \|> toBool`	`true`
`toNumber`	`"42.50" \|> toNumber`	`42.5`
`toString`	`invoiceNumber \|> toString`	`"1042"`

Type checks are useful when the same field may arrive in different shapes:

// Accept both numeric totals and totals sent as strings
(order.total |> isNumber)
  ? order.total
  : (order.total |> toNumber |> round)

Use sparingly: if every expression in your system needs the same coercion step, it is usually cleaner to normalize the data before evaluation and keep the expressions simpler.

Types ​

Types