unicorn/prefer-node-protocol
Require the node: prefix when importing Node.js built-in modules
fixable
import fs from "fs" looks like it imports an npm package. node:fs makes it obvious that the module is built in.
The rule checks import, export { ... } from, import(), require() and TypeScript's import fs = require("fs").
--fix adds the prefix.
Configure#
Off by default. To turn it on:
bunfig.toml
[lint.rules]
"unicorn/prefer-node-protocol" = "error" # or "warn"Examples#
example.js4 problems
import fs from "fs"Prefer using the node: protocol when importing Node.js built-in modules.;
import { readFile } from "fs/promises"Prefer using the node: protocol when importing Node.js built-in modules.;
export { EventEmitter } from "events"Prefer using the node: protocol when importing Node.js built-in modules.;
const os = await import("os"Prefer using the node: protocol when importing Node.js built-in modules.);example.jsNo problems
import fs from "node:fs";
import { readFile } from "node:fs/promises";
export { EventEmitter } from "node:events";
const os = await import("node:os");Packages and your own files aren't reported:
example.jsNo problems
import express from "express";
import fs from "./fs.js";