Mostafa Kamal dar4kamal

Reset Udemy Progress

Last Updated: 06/18/2024

Step 1. Go to the Udemy course in your browser

Go to the course and have any video up. The following code relies on the right sidebar to be visible to uncheck all your progress.

Step 2. Open browser console

You can do this with ctrl+shift+j and making sure the console tab is selected for chrome/brave

UPDATE (March 2020, thanks @ic): I don't know the exact AMI version but yum install docker now works on the latest Amazon Linux 2. The instructions below may still be relevant depending on the vintage AMI you are using.

Amazon changed the install in Linux 2. One no-longer using 'yum' See: https://aws.amazon.com/amazon-linux-2/release-notes/

Docker CE Install

sudo amazon-linux-extras install docker
sudo service docker start

Do not use forEach with async-await

TLDR: Use for...of instead of forEach() in asynchronous code.

For legacy browsers, use for(...;...;...) or [].reduce()

To execute the promises in parallel, use Promise.all([].map(...))

	function formatBytes(bytes,decimals) {
	if(bytes == 0) return '0 Bytes';
	var k = 1024,
	dm = decimals \|\| 2,
	sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'],
	i = Math.floor(Math.log(bytes) / Math.log(k));
	return parseFloat((bytes / Math.pow(k, i)).toFixed(dm)) + ' ' + sizes[i];
	}

	// Usage:

	import mongoose, {Schema} from 'mongoose'

	export const ServiceSchema = new Schema({
	displayName: {type: String, required: true, unique: true}
	})

	ServiceSchema.set('toObject', {
	transform: function (doc, ret) {
	ret.id = ret._id
	delete ret._id

	import pyaudio
	import wave

	FORMAT = pyaudio.paInt16
	CHANNELS = 2
	RATE = 44100
	CHUNK = 1024
	RECORD_SECONDS = 5
	WAVE_OUTPUT_FILENAME = "file.wav"