Mat marabesi

This article has been given a more permanent home on my blog. Also, since it was first written, the development of the Promises/A+ specification has made the original emphasis on Promises/A seem somewhat outdated.

You're Missing the Point of Promises

Promises are a software abstraction that makes working with asynchronous operations much more pleasant. In the most basic definition, your code will move from continuation-passing style:

getTweetsFor("domenic", function (err, results) {
 // the rest of your code goes here.

Raspberry Pi 4 + u-blox GPS module (uart)

$ sudo apt-get update
$ sudo apt-get install gpsd gpsd-client python-gps

Enable the serial interface and disable serial login shell with raspi-config then reboot. Confirm /dev/ttyS0 exists

$ ls -l /dev/serial*
lrwxrwxrwx 1 root root 5 May 9 10:38 /dev/serial0 -&gt; ttyS0

Multi-Threading in PHP with pthreads

A Brief Introduction to Multi-Threading in PHP

Foreword
Execution
Sharing
Synchronization
Pitfalls

Default

Powerlevel10k

Two way iframe communication

The main difference between the two pages is the method of sending messages. Recieving messages is the same in both.

Parent

Send messages to iframe using iframeEl.contentWindow.postMessage Recieve messages using window.addEventListener('message')

iframe

How do you POST a JSON file with curl??

You can post a json file with curl like so:

curl -X POST -H "Content-Type: application/json" -d @FILENAME DESTINATION

so for example:

###Icons

Name	Size
iphone_2x	120x120
iphone_3x	180x180
ipad	76x76
ipad_2x	152x152
android_ldpi	36x36
android_mdpi	48x48

	<?php
	/**
	* Array2XML: A class to convert array in PHP to XML
	* It also takes into account attributes names unlike SimpleXML in PHP
	* It returns the XML in form of DOMDocument class for further manipulation.
	* It throws exception if the tag name or attribute name has illegal chars.
	*
	* Author : Lalit Patel
	* Website: http://www.lalit.org/lab/convert-php-array-to-xml-with-attributes
	* License: Apache License 2.0

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