Error: plugin.apply is not a function

[zeroby0]

Thanks for the plugin! :D

markdownIt().use(plugin, ...) calls plugin.apply(). But since this plugin doesn't define an apply function, an error is raised. @types/markdown-it doesn't seem to define is it either.

https://github.com/markdown-it/markdown-it/blob/6e2de08a0b03d3d0dcc524b89710ce05f83a0283/lib/index.js#L495-L499

Reproducing:
https://glitch.com/edit/#!/festive-orange-event?path=server.js%3A1%3A0

const markdownIt = require('markdown-it')
const mdShiki = require('markdown-it-shiki')

const mdlib = markdownIt()
        .use(mdShiki, {
            theme: 'nord'
        })

or

import MarkdownIt from 'markdown-it'
import Shiki from 'markdown-it-shiki'

const md = MarkdownIt()

md.use(Shiki, {
  theme: 'nord'
})

Error text:

/home/aravind/src/avoggu.com/node_modules/markdown-it/lib/index.js:497
  plugin.apply(plugin, args);
         ^

TypeError: plugin.apply is not a function
    at MarkdownIt.use (/home/aravind/src/avoggu.com/node_modules/markdown-it/lib/index.js:497:10)
    at file:///home/aravind/src/avoggu.com/ind.mjs:6:4
    at ModuleJob.run (node:internal/modules/esm/module_job:183:25)
    at async Loader.import (node:internal/modules/esm/loader:178:24)
    at async Object.loadESM (node:internal/process/esm_loader:68:5)
    at async handleMainPromise (node:internal/modules/run_main:63:12)

[antfu]

I believe apply is from the function's prototype. While we did expose an function for it, try

const mdShiki = require('markdown-it-shiki').default

[zeroby0]

Ooh that works! Thank you so much! I thought markdown-it changed, and the plugin would need a re-write 😂

Smart thinking, exposing the prototype! Can we add it to the Readme? Perhaps in an FAQs section?

[antfu]

The default is mostly because of the ESM/CJS converting. rollup/rollup#1961 (comment)