franher

#!/bin/bash

for i in $(find ./src -name '*.js' );
do
  if ! grep -q Copyright "$i"
  then
    echo "$i"
    cat license-header.txt "$i" > "$i".new && mv "$i".new "$i"
  fi
done

franher

const util = require('util');
const fs = require('fs');

/**
 * identity function f(v) -> v
 * Using ES6 Promise
 * 
 * async/await approach:
 * async function identityAsync(v) {
 *  return v;

franher

const { promisify } = require('util');
const { read, open } = require('fs');

const readPromisified = promisify(read);
const openPromisified = promisify(open);

const expected = Buffer.from('xyz\n');
const buffer = Buffer.allocUnsafe(expected.length);

openPromisified('x.txt', 'r').then(fd => {