Use new `node:` prefix on Repl.it with Node v12

.readme.md

node: schema prefixes on repl.it

If you want to use the node: prefixes for builtin modules on repl.it, then (as of May 2021) you need to do a few things:

1. In .replit, add the [packager] section with the ignoredPackages configuration seen in the example file below. This will disable the automatic installation on repl.it of these packages.
2. In .replit, change the start script to yarn start
3. In package.json, add a scripts section with the start script as seen in the example file below. This will transpile away the node: prefixes for the older Node v12 version using @upleveled/babel-plugin-remove-node-prefix.
4. Run yarn add --dev @babel/core @babel/node @upleveled/babel-plugin-remove-node-prefix

Example repl here: https://replit.com/@karlhorky/node-prefix-babel-demo#index.js

In the future, repl.it will support the node: prefix and this workaround will no longer be required: https://twitter.com/amasad/status/1390720114832543744

.replit

language = "nodejs"
run = "yarn start"

[packager]
ignoredPackages=[
  "node:assert",
  "node:async_hooks",
  "node:buffer",
  "node:child_process",
  "node:cluster",
  "node:console",
  "node:constants",
  "node:crypto",
  "node:dgram",
  "node:dns",
  "node:domain",
  "node:events",
  "node:fs",
  "node:http",
  "node:http2",
  "node:https",
  "node:inspector",
  "node:module",
  "node:net",
  "node:os",
  "node:path",
  "node:perf_hooks",
  "node:process",
  "node:querystring",
  "node:readline",
  "node:repl",
  "node:stream",
  "node:string_decoder",
  "node:timers",
  "node:tls",
  "node:trace_events",
  "node:tty",
  "node:url",
  "node:util",
  "node:v8",
  "node:vm",
  "node:wasi",
  "node:worker_threads",
  "node:zlib",
]

index.js

const fs = require("node:fs");

package.json

{
  "main": "index.js",
  "scripts": {
    "start": "yarn babel-node --plugins @upleveled/remove-node-prefix index.js"
  },
  "devDependencies": {
    "@babel/core": "^7.14.0",
    "@babel/node": "7.13.13",
    "@upleveled/babel-plugin-remove-node-prefix": "1.0.1"
  }
}