fixmyjs

2.0.0 verified Fri May 01 auth: no javascript maintenance

fixmyjs automatically fixes JavaScript code based on lint rules from JSHint/JSLint. Version 2.0.0 is latest stable, with no active development since 2016. It applies transformations like adding curly braces, converting to strict equality, hoisting vars, and more. Unlike ESLint's --fix, it works as a separate CLI tool or library. Maintenance mode: critically depends on unmaintained JSHint.

Common errors

error Cannot find module 'fixmyjs' ↓

cause Package not installed or not in node_modules

fix

Run npm install fixmyjs.

error TypeError: fixmyjs.fix is not a function ↓

cause Used CommonJS require instead of ESM import (fixmyjs v2+ is ESM-only).

fix

Use import { fix } from 'fixmyjs' or import fixmyjs from 'fixmyjs' then fixmyjs.fix(...).

error fixmyjs: command not found ↓

cause CLI not installed globally or not in PATH

fix

Run npm install -g fixmyjs.

Warnings

breaking Legacy mode removed in v2.0 ↓

fix Use config in package.json instead of legacy options.

breaking All rules now truthy in v2.0 ↓

fix Set rules to true instead of false to enable; check default config in package.json.

deprecated Package is unmaintained since 2016 ↓

fix Consider using ESLint --fix or prettier instead.

gotcha CLI tool requires global install ↓

fix Run `npm install -g fixmyjs` before using `fixmyjs your_file.js`.

gotcha fix function mutates input options object ↓

fix Clone options before passing: fix(code, {...options}).

Install

npm install fixmyjs

yarn add fixmyjs

pnpm add fixmyjs

Imports

fix
wrong
```
const fix = require('fixmyjs')
```
correct
```
import { fix } from 'fixmyjs'
```
ESM import is correct; CommonJS require gives a function, not an object.

default import

wrong

import { default as fixmyjs } from 'fixmyjs'

correct

import fixmyjs from 'fixmyjs';
const result = fixmyjs.fix(code, options);

Default import gives an object with fix method.

TypeScript type
wrong
```
import { FixOptions } from 'fixmyjs'
```
correct
```
import type { FixOptions } from 'fixmyjs'
```
Types are not shipped; use @types/fixmyjs or declare module.

Quickstart

Demonstrates programmatic usage: fixes code by converting == to === and ++ to +=1.

import { fix } from 'fixmyjs';
const code = 'var x = 1; if (x == 1) { x++; }';
const options = { eqeqeq: true, plusplus: true };
const fixed = fix(code, options);
console.log(fixed); // 'var x = 1; if (x === 1) { x += 1; }'