Creating default object from type definition

Hi! I would like to migrate my project from TypeBox to ArkType, as I love the work you're doing on it, and the development experience seems much better. There is one feature that I love in TypeBox, but couldn't find in ArkType: creating a default object from a type definition. Is this something that exists or was ever raised/considered? I would find this feature very useful to create the initial state of a form, without any code duplication.

Example syntax:

import { type } from 'arktype';

export const userType = type({
  name: 'string',
  device: {
    platform: "'android'|'ios'",
    'version?': 'number',
  },
});

const user = userType.create();
console.log(user)
// {name: '', device: {platform: 'android'}}

import { type } from 'arktype';

export const userType = type({
  name: 'string',
  device: {
    platform: "'android'|'ios'",
    'version?': 'number',
  },
});

const user = userType.create();
console.log(user)
// {name: '', device: {platform: 'android'}}

arktype•2y ago•

22 replies

itsyoboieltr

Creating default object from type definition

import { type } from 'arktype';

export const userType = type({
  name: 'string',
  device: {
    platform: "'android'|'ios'",
    'version?': 'number',
  },
});

const user = userType.create();
console.log(user)
// {name: '', device: {platform: 'android'}}

import { type } from 'arktype';

export const userType = type({
  name: 'string',
  device: {
    platform: "'android'|'ios'",
    'version?': 'number',
  },
});

const user = userType.create();
console.log(user)
// {name: '', device: {platform: 'android'}}

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