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If you haven’t worked with JavaScript in the last few years, these three points should give you enough knowledge to feel comfortable reading the React documentation:

• We define variables with let and const statements. For the purposes of the React documentation, you can consider them equivalent to var.
• We use the class keyword to define JavaScript classes. There are two things worth remembering about them. Firstly, unlike with objects, you don't need to put commas between class method definitions. Secondly, unlike many other languages with classes, in JavaScript the value of this in a method [depends on how it is called](https://developer.mozilla.org/en-US/docs/Web/Jav

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ANNOUNCEMENT

I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!






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This is my personal list of functions that I wrote for converting mov files to mp4!

Command Flags

Flag	Options	Description
-codec:a	libfaac, libfdk_aac, libvorbis	Audio Codec
-quality	best, good, realtime	Video Quality
-b:a	128k, 192k, 256k, 320k	Audio Bitrate
-codec:v	mpeg4, libx264, libvpx-vp9	Video Codec

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Pluck Unique Values from Array of Javascript Objects

Implementation

const pluck = key => array => Array.from(new Set(array.map(obj => obj[key])));

Usage

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Converting mkv to mp4 with ffmpeg

Essentially just copy the existing video and audio stream as is into a new container, no funny business!

The easiest way to "convert" MKV to MP4, is to copy the existing video and audio streams and place them into a new container. This avoids any encoding task and hence no quality will be lost, it is also a fairly quick process and requires very little CPU power. The main factor is disk read/write speed.

With ffmpeg this can be achieved with -c copy. Older examples may use -vcodec copy -acodec copy which does the same thing.

These examples assume ffmpeg is in your PATH. If not just substitute with the full path to your ffmpeg binary.

Single file conversion example

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Summary

A sentence describing the reason for the changes in this pull request.

Description

A few sentences / bullet points describing the goals of this change and the implementation.

Link to Issue

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[short title of solved problem and solution]

• Status: [accepted | superseded by ADR-0005 | deprecated | …]
• Deciders: [list everyone involved in the decision]
• Date: [YYYY-MM-DD when the decision was last updated]

Technical Story: [description | ticket/issue URL]

Context and Problem Statement

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Whether you're trying to give back to the open source community or collaborating on your own projects, knowing how to properly fork and generate pull requests is essential. Unfortunately, it's quite easy to make mistakes or not know what you should do when you're initially learning the process. I know that I certainly had considerable initial trouble with it, and I found a lot of the information on GitHub and around the internet to be rather piecemeal and incomplete - part of the process described here, another there, common hangups in a different place, and so on.

In an attempt to coallate this information for myself and others, this short tutorial is what I've found to be fairly standard procedure for creating a fork, doing your work, issuing a pull request, and merging that pull request back into the original project.

Creating a Fork

Just head over to the GitHub page and click the "Fork" button. It's just that simple. Once you've done that, you can use your favorite git client to clone your repo or j

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## For educational purposes only! Not a substitute for individualized advice from a qualified legal practitioner. ##

SOFTWARE CONSULTING AGREEMENT

THIS AGREEMENT is entered into on <contract date> by and between Avie, LLC, (hereinafter "Developer") and <client company>, (hereinafter "Company"). 

RECITALS 

WHEREAS, Company wishes to retain Developer to develop certain <software type> software (hereinafter defined and referred to as “Software”); and

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var request = require('request');
var fs = require('fs');
var sox = require('sox');
var spawn = require('child_process').spawn;

var WATSON_USER = '';
var WATSON_PASS = '';
var url = 'https://stream.watsonplatform.net/speech-to-text/api/v1/recognize';