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@kangax's ES6 quiz, explained

@kangax created a new interesting quiz, this time devoted to ES6 (aka ES2015). I found this quiz very interesting and quite hard (made myself 3 mistakes on first pass).

Here we go with the explanations:

Question 1:

(function(x, f = () => x) {

glebcha

const EXTENSION_TYPE = {
    0x01: 'PlainText',
    0xF9: 'GraphicControl',
    0xFE: 'Comment',
    0xFF: 'Application'
};

/**
 * Returns total length of data blocks sequence
 *

glebcha

Here is my recipe how to speed up WebStorm:

Go to Preferences and do next:
Appearance & Behaviour > System Settings > Updates: disable auto update
Appearance & Behaviour > System Settings > Using Statistics: Uncheck allowing sending data
Editor > Live Templates: disable all, leave only what you are really use
Editor > Emmet: disable all emmets
Editor > Intentions: I leave only: CSS, Declaration, JavaScript and Language Injection
Plugins: leave only next (* - can be also disabled in case don't need them):
CoffeeScript *

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/**
 * Originally from http://davidwalsh.name/convert-xml-json
 * This is a version that provides a JSON object without the attributes and places textNodes as values
 * rather than an object with the textNode in it.
 * 27/11/2012
 * Ben Chidgey
 *
 * @param xml
 * @return {*}
 */

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<?php
/**
* WordPress Query Comprehensive Reference
* Compiled by luetkemj - luetkemj.com
*
* CODEX: http://codex.wordpress.org/Class_Reference/WP_Query
* Source: http://core.trac.wordpress.org/browser/tags/3.5.1/wp-includes/query.php
*/
 
$args = array( 

glebcha

Centering in the Unknown

A Pen by Chris Coyier on CodePen.

License.