Tim timolinn

Golang — Understanding channel, buffer, blocking, deadlock and happy groutines.

I was so confused to understand behaviior of Golang channels, buffer, blocking, deadlocking and groutines.

I read Go by Example topics.

Minimal example: transcode from MP3 to WMA:
ffmpeg -i input.mp3 output.wma

You can get the list of supported formats with:
ffmpeg -formats

You can get the list of installed codecs with:

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

	// Package gochannels example of how to close a channel written by several goroutines
	package gochannels

	import (
	"math/big"
	"sync"
	)

	// Publisher write sequences of big.Int into a channel
	type Publisher struct {

	/**
	copy & paste into the browser console
	on https://boards.greenhouse.io/andela
	*/

	(() => {
	// create display box
	if (!$('#count-popover').length) {
	$('#footer').append(`<div style="position:fixed;height:200px;width:200px;left:calc(50% - 100px);top: calc(50% - 100px);border:2px solid black;background-color: white;font-size: 50px;text-align: center;line-height: 200px;" id="count-popover">0</div>`)
	}

	to check if the server works - https://webrtc.github.io/samples/src/content/peerconnection/trickle-ice

	stun:
	stun.l.google.com:19302,
	stun1.l.google.com:19302,
	stun2.l.google.com:19302,
	stun3.l.google.com:19302,
	stun4.l.google.com:19302,
	stun.ekiga.net,
	stun.ideasip.com,

	Quick tip for handling CSRF Token Expiration - common issue is when you use csrf protection is that if
	a form sits there for a while (like a login form, but any the same) the csrf token in the form will
	expire & throw a strange error.

	Handling it is simple, and is a good lesson for dealing with other types of errors in a custom manner.

	In Middleware you will see a file VerifyCsrfToken.php and be tempted to handle things there. DON'T!
	Instead, look at your app/Exceptions/Handler.php, at the render($request, Exception $e) function.

	All of your exceptions go through here, unless you have excluded them in the $dontReport array at the

	/*
	This code Do the following stuff :
	1) login to a website called : website.com by submitting password and username on the page with url :- http://website.com/login
	2) Now after login using the cookies stored by this webiste access user profile page
	3) Now using same client which stored the required cookies make another post request to user profile page present at page :-
	http://website.com/upser_profile_page .
	4) Now get html of this whole page and print it in log as a string .

	*/