Allan Lukwago epicallan

##Chai Expect

##Language Chains

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Sample service script for debianoids

Look at LSB init scripts for more information.

Usage

Copy to /etc/init.d:

# replace "$YOUR_SERVICE_NAME" with your service's name (whenever it's not enough obvious)

#RxJS 5 Operators By Example A complete list of RxJS 5 operators with easy to understand explanations and runnable examples.

Chinese Version by: @DrakeLeung

Capture user input to send to the service for data: http://jsfiddle.net/mattpodwysocki/uv5JU/
Throttle the data so we don't overload the server: http://jsfiddle.net/mattpodwysocki/EJqv5/
Ensure minimum number of characters: http://jsfiddle.net/mattpodwysocki/nWfH9/
Only distinct values, no repeats!: http://jsfiddle.net/mattpodwysocki/THMPk/

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Element

Box metrics

elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent
elem.clientLeft, elem.clientTop, elem.clientWidth, elem.clientHeight
elem.getClientRects(), elem.getBoundingClientRect()

Stuff I wish I'd known sooner about service workers

I recently had several days of extremely frustrating experiences with service workers. Here are a few things I've since learned which would have made my life much easier but which isn't particularly obvious from most of the blog posts and videos I've seen.

I'll add to this list over time – suggested additions welcome in the comments or via twitter.com/rich_harris.

Use Canary for development instead of Chrome stable

Chrome 51 has some pretty wild behaviour related to console.log in service workers. Canary doesn't, and it has a load of really good service worker related stuff in devtools.

	<?php
	/**
	* QR Code + Logo Generator
	*
	* http://labs.nticompassinc.com
	*/
	$data = isset($_GET['data']) ? $_GET['data'] : 'http://labs.nticompassinc.com';
	$size = isset($_GET['size']) ? $_GET['size'] : '200x200';
	$logo = isset($_GET['logo']) ? $_GET['logo'] : FALSE;

	<?php
	/**
	* QR Code + Logo Generator
	*
	* http://labs.nticompassinc.com
	*/
	$data = isset($_GET['data']) ? $_GET['data'] : 'http://labs.nticompassinc.com';
	$size = isset($_GET['size']) ? $_GET['size'] : '200x200';
	$logo = isset($_GET['logo']) ? $_GET['logo'] : FALSE;

	// important: note the priority of 99, the js needs to be placed after tinymce loads
	// important: note that this assumes you're using http://wordpress.org/extend/plugins/verve-meta-boxes/
	// to create the textarea - otherwise change your selector

	function admin_add_wysiwyg_custom_field_textarea()
	{ ?>
	<script type="text/javascript">/* <![CDATA[ */
	jQuery(function($){
	var i=1;
	$('.verve_meta_box_content textarea').each(function(e)

	/*
	* Observable
	*/

	var xs = Rx.Observable.range(0, 3)
	xs.subscribe(log)
	//=> 0
	//=> 1
	//=> 2