jthoms1

let things = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];

let other = things
  .map(function(num) { return num + 1; }) // creates a new array that contains [2, 3, 4, 5, 6, 7, 8, 9, 10, 11] and returns it
  .filter(function(num) { return num % 3 === 0; }) // reduces the array contents so that it contains [3, 6, 9] and returns it
  .join(' -> '); // joins the values and returns a string '3 -> 6 -> 9'

// This could just as easily be written as follows

let a = things.map(function(num) { return num + 1; });

jthoms1

export interface Promisify {
  <T>(func: (callback: (err: any, result: T) => void) => void): () => Promise<T>;
  <T, A1>(func: (arg1: A1, callback: (err: any, result: T) => void) => void): (arg1: A1) => Promise<T>;
  <T, A1, A2>(func: (arg1: A1, arg2: A2, callback: (err: any, result: T) => void) => void): (arg1: A1, arg2: A2) => Promise<T>;
  <T, A1, A2, A3>(func: (arg1: A1, arg2: A2, arg3: A3, callback: (err: any, result: T) => void) => void): (arg1: A1, arg2: A2, arg3: A3) => Promise<T>;
  <T, A1, A2, A3, A4>(func: (arg1: A1, arg2: A2, arg3: A3, arg4: A4, callback: (err: any, result: T) => void) => void): (arg1: A1, arg2: A2, arg3: A3, arg4: A4) => Promise<T>;
  <T, A1, A2, A3, A4, A5>(func: (arg1: A1, arg2: A2, arg3: A3, arg4: A4, arg5: A5, callback: (err: any, result: T) => void) => void): (arg1: A1, arg2: A2, arg3: A3, arg4: A4, arg5: A5) => Promise<T>;
}
/**
 * @example: const rReadFile = promisify<Buffer, string>(fs.readFile);

jthoms1

{
  "name": "test",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "repository": {
    "type": "git",

jthoms1

{
  "plugins": [
    "transform-es2015-destructuring",
    "transform-es2015-function-name",
    "transform-es2015-modules-commonjs",
    "transform-es2015-parameters",
    "transform-es2015-spread",
    "transform-object-rest-spread",
    "transform-async-to-generator",
    "transform-function-bind"