Error: m is not a function

[amitnovick]

Description

Loading this Visualizer with this Gist
A minimal reproduction linked in the comment below triggers the following error:

TypeError: m is not a function
    at StateChartNode.js:191
    at Array.map (<anonymous>)
    at e.render (StateChartNode.js:176)

[amitnovick]

OK found out what the problematic part is: the delay configuration seems to break something.

Minimal reproduction

• Gist
• Visualizer

[amitnovick]

In the Minimal Reproduction Gist I had a delay function defined in-line, which should work according to the Docs, but causes the error when loaded into the VIsualizer:

    first: {
      after: [
        {
          delay: () => 1000, // 👈
          target: 'second',
        },
      ],
    },

However, switching out the delay function with a string with the value of a function defined in the delays options seems to make the error go away:

const machine = Machine(
  {
    initial: 'first',
    states: {
      first: {
        after: [
          {
            delay: 'minimumDelay', // 👈
            target: 'second',
          },
        ],
      },
      second: {},
    },
  },
  {
    delays: {
      minimumDelay: () => 1000,
    },
  },
);