CrashedBboy

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

CrashedBboy

import json, sys, os, subprocess

def isNumber(i):
    if type(i) == int or type(i) == float:
        return True
    else:
        return False

def isVideo(filename):
    chunks = filename.split(".")

CrashedBboy

import json, sys, os
from PIL import Image

def isNumber(i):
    if type(i) == int or type(i) == float:
        return True
    else:
        return False

def isJPEG(filename):

CrashedBboy

from moviepy.editor import VideoFileClip, concatenate_videoclips

clip1 = VideoFileClip("1.mp4")
clip2 = VideoFileClip("2.mp4")
clip3 = VideoFileClip("3.mp4")
clip4 = VideoFileClip("4.mp4")
clip5 = VideoFileClip("5.mp4")
clip6 = VideoFileClip("6.mp4")

final_clip = concatenate_videoclips([clip1,clip2, clip3, clip4, clip5, clip6])

CrashedBboy

// class
function Serial(path, birate, dataBit, stopBit, parityBit, stageManager) {
	this.path = path;
	this.birate = birate;
	this.dataBit = dataBit;
	this.stopBit = stopBit;
	this.parityBit = parityBit;
	this.stageManager = stageManager;
	this.connectionId = null;
	this.buffer = "";

CrashedBboy

async function start () {
    try {
        let result1 = await callAwaitFunction(2);
        console.log(result1);

        let result2 = await callAwaitFunction(-1);
        console.log(result2);

        // these 2 lines won't be reached because of the exception
        let result3 = await callAwaitFunction(2);