ts/no-require-imports

Disallow require() in TypeScript files. Prefer ESM import syntax.

• Category: Plugin (built-in)
• Default: off

Config (both forms accepted):

pluginRules: { 'no-require-imports': 'error' }
// or
pluginRules: { 'ts/no-require-imports': 'error' }

Examples (violations):

// a.ts
const fs = require('node:fs')

// a.ts
import fs = require('fs')

Non-violations:

// dynamic import
const mod = await import('node:fs')

Rationale: TypeScript projects commonly target ESM. Mixing require() with ESM import/export leads to interop edge cases and bundler inconsistencies.

Best practices

• Use import fs from 'fs' or import * as fs from 'fs' depending on module type
• Enable this rule at error for ESM-only codebases
• If migrating legacy CJS, selectively disable the rule per-file during transition