This blog post explains how to use the Analytics Core Reporting API by Google from Node.js.

Let’s use that API to create a Node.js script analytics.js that downloads the top 10 most visited pages of your website.

This blog post explains how to use ES6 Proxies to intercept method calls to an object.

Read chapter “Meta programming with proxies” in “Exploring ES6” for more information on Proxies.

Enumerability is an attribute of object properties. This blog post explains how it works in ECMAScript 6.

Let’s first explore what attributes are.

Typed Arrays don’t have a method concat(), like Arrays do. The work-around is to use the method

typedArray.set(arrayOrTypedArray, offset=0)

There is a subtle difference between an object with methods and an object with callbacks.

In ECMAScript 6, the object Symbol has several properties that contain so-called well-known symbols (Symbol.iterator, Symbol.hasInstance, etc.). These let you customize how ES6 treats objects. This blog post explains the details.

The property __proto__ (pronounced “dunder proto”) has existed for a while in most JavaScript engines. This blog post explains how it worked prior to ECMAScript 6 and what changes with ECMAScript 6.

This blog post describes how ECMAScript 6 handles holes in Arrays.

Update 2015-12-26: Sections for two caveats: “the name of a function is always assigned at creation” and “minification”

The name property of a function contains its name:

> function foo() {}
> foo.name
'foo'

This property is useful for debugging (its value shows up in stack traces) and some metaprogramming tasks (picking a function by name etc.).

Prior to ECMAScript 6 (ES6), this property was already supported by most engines. With ES6, it becomes part of the language standard and is frequently filled in automatically.

Typed Arrays are an ECMAScript 6 API for handling binary data. This blog post explains how they work.