KRostyslav

# Password (min 8 symbols, with spec symbols) 
/^(?=.*[a-z])(?=.*[A-Z])(?=.*[0-9])(?=.*[!@#\$%\^&\*])(?=.{8,})/

# Password (8-12 symbols, without spec symbols)
/^(?=.*[a-z])(?=.*[A-Z])(?=.*[0-9])(?=.{8,12})/

# Percent (0 .. 100)
/^([0-9]{1,2}){1}(\.[0-9]*)?$|^(100)$/

KRostyslav

Environments in React App

// src/config.js

export default {
  s3: {
    BUCKET: "YOUR_S3_BUCKET_NAME",
  },
 api: {

KRostyslav

gource --seconds-per-day 1  -1280x720 -o - | ffmpeg -y -r 60 -f image2pipe -vcodec ppm -i - -vcodec libx264 -preset veryslow  -pix_fmt yuv420p -crf 22 -threads 0 -bf 0 video.mp4

KRostyslav

React Hooks

from React v.16.8

• useState
• useReducer
• useEffect
• useLayoutEffect
• useContext
• useMemo

KRostyslav

List all python versions in default locations

ls /usr/bin/python*
ls /usr/bin/ | grep python

To remove just python3 package