| // An usage of AWS.IotData in Lambdas | |
| // | |
| // This example assumes some things | |
| // 1. That you have a environment variable AWS_IOT_ENDPOINT. This is the url that you can find in AWS IoT dashboard settings | |
| // 2. The lambda and your aws iot devices are on the same account and region | |
| const AWS = require('aws-sdk'); | |
| const iotData = new AWS.IotData({ endpoint: process.env.AWS_IOT_ENDPOINT }); | |
| const handler = (event, context) => { |
Linux containers created isolated environments that share a single operating system.
Containers live on top of an OS with its own dependencies and other configurations/ They don't know about each other. They have their own file systems.
Docker makes it easy to deal with Linux containers.
The Docker engine manages your containers.
void SetLanguagePreference(string language)
{
PlayerPrefs.SetString(“language”, language);
}
void SetDifficultyPreference(string difficulty)
{
PlayerPrefs.SetString(“difficulty”, difficulty);
}
A dynamic website takes a bunch of data on the backend – content, databases, layout etc. and sends the user a finished product when they request it.
A static website generator has a set of HTML files delivered immediately to the user when they arrive to the site. These files are the finished product, holding all the latest data, layout etc. These files are delivered together when the user reaches the site. Content is often written in Markdown or another format that can be transformed into the final HTML for display in the browser.
Static websites can't really offer a real-time experience or much in the way of user involvement.
| const playAudio = (dataArr) => { | |
| const audioArrBuff = convertDataStreamToAudioArrayBuffer(dataArr) | |
| // ^ converts raw data into an audio array buffer so that audio node can play it | |
| const source = audioContext.createBufferSource() | |
| // ^ prepares audio context to receive array buffer with a new buffer source | |
| // Registers an event listener to play 'Quindar Beep/Tone' at end of transmission | |
| source.onended = () => { | |
| // When audio source has stopped playing... | |
| NASABeep && NASABeep.play() // bullet proofing for some smart phones that do not support all parts of WebAudio API |
| import Tuna from 'tunajs' | |
| /* | |
| Takes in the audio context and audio source declared by the WebAudioAPI. You'll | |
| need to set get access to the user's microphone and set up an audio node. | |
| Use this tutorial to start: https://www.html5rocks.com/en/tutorials/webaudio/intro/ | |
| */ | |
| const processRadioTransmission = (audioContext, audioSource) => { | |
| var tuna = new Tuna(audioContext) |
Recently, I had the chance to design a small audio module for a space-themed WebVR simulation.
Many people don't know that browsers support a remarkable set of tools for creating and transforming audio files.
We wanted our space simulation to be as immersive as possible. The user experience was all about communication. So we needed immersive audio to match our VR.
Let's see how we can create immersive audio for our interstellar radio transmissions, using only the browser!
I love flashcards. One of the fun things about programming is that you can turn almost anything into a flashcard.
The secret of flashcards is spaced repetition. Just as something is slipping out of memory, flashcards force you to retrieve it. This strengthens the neural connections to the concept, just like exercising regularly strengthens your muscles.
You can use Anki to make your flashcards, because it automatically spaces out your repetition.
Practice every day. Put 'review Anki' in your todo/task list of choice.
Memorization gets a bad rap. In programming, some people will say 'I can just look it up in the docs when I need it!', or 'Programming isn't memorizing syntax, it's about knowing how to reason through problems.' Don't listen to these people.
One of the great things about Fullstack is that they provide you with many excellent pre-made tests and workshops. Most of these use test-driven development (TDD). In other words, they display a series of tests that suggest functionality in your program. You have to write the code that makes those tests pass.
When you're gearing up for your Senior Checkpoint these tests are worth their weight in gold.
During the weeks we had to prepare for our final exam, I did each test three times. I spaced them out, so that each test was re-taken a few days apart. This helped me honestly gauge how well I was remembering things, and to space out my practice.
Don't watch YouTube videos as your primary way of studying for the test. Do these tests instead.
There are three big benefits to this approach.