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Rslint

    no-mixed-requires

    Unreleased

    Configuration

    rslint.config.ts
    import { defineConfig } from '@rslint/core';

export default defineConfig([
  {
    plugins: ['node'],
    rules: {
      'node/no-mixed-requires': 'error',
    },
  },
]);

    Rule details

    Disallow mixing require() declarations with other variables in the same var, let, or const declaration. Uninitialized variables count as other declarations. Accessing a property of a required module is allowed.

    Examples of incorrect code:

    const fs = require("fs"), count = 0;
let path = require("path"), filename;

    Examples of correct code:

    const fs = require("fs"), readFile = require("fs").readFile;
const count = 0;
let filename;

    Options

    "node/no-mixed-requires": ["error", { grouping: false, allowCall: false }]
    • grouping (default: false): require declarations in one statement must all load the same kind of module: core, package, file, or computed. File paths start with /, ./, or ../. Arguments other than string literals, and calls without arguments, are computed.
    • allowCall (default: false): allow calling the result of require() directly, such as require("diagnostics")("app"). Calling a property, such as require("diagnostics").create("app"), still counts as another declaration. When combined with grouping, the outer call's first argument determines the group.

    The legacy boolean option is also supported: true enables grouping and false disables it. Prefer the object form.

    With grouping: true, split different module kinds into separate declarations:

    // Incorrect
const fs = require("fs"), helper = require("./helper");

// Correct
const fs = require("fs"), path = require("path");
const helper = require("./helper");

    With allowCall: true, a module factory can share a declaration with other requires:

    const helper = require("helper"), debug = require("diagnostics")("app");

    Like upstream, locally defined functions named require are also checked. With grouping: true, require("node:fs") and require("fs/promises") belong to the package group, while require("fs") belongs to the core group.

    This rule does not provide automatic fixes or suggestions.

    Original documentation