Prettier Hook

The library allows to modify the AST before executing Prettier.

const { hooks } = require('prettier-hook');

function parse(ast) {
  // modify AST
  return ast;
}

hooks.typescript.addHook(parse);

npx prettier-hook --require <filepath>
// or
yarn prettier-hook --require <filepath>

Example

There is an example which is converting require to import.

// examples/simple/test.js
const fs = require('fs');

$ DEBUG=1 yarn ts-node dist/bin/prettier-hook.js --require examples/simple/index.ts examples/simple/test.js

// examples/simple/test.js
import * as fs from 'fs';

Use case

• javascript2typescript
• typeg