showValue

The showValue utility can be used to display a human readable string representation of a JavaScript value. This is useful when constructing custom errors in .withConstraint and .withParser

It aims to produce more readable output than JSON.stringify and handles cutting off the string before it gets too long, and deals with cycles, all while only being a tiny function to avoid adding too much to the bundle size.

For example:

import * as ft from "funtypes";

assert.deepEqual(
  ft.showValue({
    id: 42,
    name: "Forbes Lindesay",
  }),
  `{ id: 42, name: "Forbes Lindesay" }`,
);