johnjbarton

// Here is a proposal for minimalist JavaScript classes(?), that does not
// introduces any additional syntax to the language, instead it standardizes
// approach already used by majority of JS frameworks today.

// !!! What is a PROBLEM!!!

function Dog(name) {
  // Classes are for creating instances, calling them without `new` changes
  // behavior, which in majority cases you need to handle, so you end up with
  // additional boilerplate.

johnjbarton

Object.defineProperty(Object, 'mergeDescriptors', {
  value: function() {
    // Shallow copy of the argument property descriptors, right most wins
    //
    var properties = {}
    Array.prototype.slice.call(arguments).forEach(function(source) {
      Object.getOwnPropertyNames(source).forEach(function(name) {
        properties[name] = Object.getOwnPropertyDescriptor(source, name)
      })
    })

johnjbarton

// Comparing some of the use-cases for 'quasi-literals' aka string templates to normal functions and strings
// http://wiki.ecmascript.org/doku.php?id=harmony:quasis#syntax

x`foo${bar}baz`
// vs
x('foo',bar,'baz');

// http://wiki.ecmascript.org/doku.php?id=harmony:quasis#secure_content_generation

safehtml`<a href="${url}?q=${query}" onclick=alert(${message}) style="color: ${color}">${message}</a>`

johnjbarton

{
  "name": "traceur",
  "version": "0.0.10-1",
  "description": "Experimental ES6 to ES5 compiler",
  "keywords": [
    "javascript",
    "ecmascript",
    "language",
    "es5",
    "es6",

johnjbarton

ESC[32minfoESC[39m:    Welcome to ESC[90mNodejitsuESC[39m ESC[35mjohnjbartonESC[39m
ESC[32minfoESC[39m:    jitsu v0.13.9, node v0.10.4
ESC[32minfoESC[39m:    It worked if it ends with ESC[90mNodejitsuESC[39mESC[1mESC[32m okESC[39mESC[22m
ESC[32minfoESC[39m:    Executing command ESC[35mdeployESC[39m
ESC[32minfoESC[39m:    Analyzing application dependencies in ESC[35mbuild/printSemver.jsESC[39m
ESC[34mdebugESC[39m:   { method: ESC[32m'GET'ESC[39m,
ESC[34mdebugESC[39m:     uri: ESC[32m'https://api.nodejitsu.com/apps/johnjbarton/traceur'ESC[39m,
ESC[34mdebugESC[39m:     headers: 
ESC[34mdebugESC[39m:      { Authorization: ESC[32m'*********************************************************************'ESC[39m,
ESC[34mdebugESC[39m:        ESC[32m'Content-Type'ESC[39m: ESC[32m'application/json'ESC[39m },

johnjbarton

<script src="../third_party/harmony-reflect/reflect.js"></script>

<script name="testObjectCreate">
(function() {
	var aPrototype = {foo: 'foo'};
	var handler = {
		get: function(target, name, receiver) {
			console.log('   (Proxy handler \'get\' called for name = ' + name + ')');
			return target[name];
		}

johnjbarton

<script src="../third_party/harmony-reflect/reflect.js"></script>

<script name="testObjectCreate">
(function() {
	var aPrototype = {foo: 'foo'};
	var handler = {
		get: function(target, name, receiver) {
			console.log('   (Proxy handler \'get\' called for name = ' + name + ')');
			return target[name];
		}

johnjbarton

<script src="../third_party/harmony-reflect/reflect.js"></script>

<script name="testObjectCreate">
(function() {
  var aPrototype = {foo: 'foo'};
  function createProxy(obj) {
    return Proxy(obj, {
      get: function(target, name, receiver) {
        console.log('   (Proxy handler \'get\' called for name = ' + name + ')');
        if (name === '__proto__')