arktype

es2020 compatibility

Remove usages of newer prototypes methods like .at() to better support legacy browsers

improve external generic inference

Some inference scenarios like the following involving default values are now more cooperative (thanks @Andarist) 🎉

function someFunction<TSchema extends Record<string, any>>(
	schema: Type<TSchema, {}>
): (typeof schema)["infer"] {
	const someData = { hello: "world" }
	return schema.assert(someData)
}

const schema = type({
	hello: type("string").pipe(s => s === "world"),
	goodbye: "string='blah'"
})

someFunction(schema)