important-links

knowladge
https://github.com/h5bp/Front-end-Developer-Interview-Questions
https://github.com/h5bp/Front-end-Developer-Interview-Questions/blob/master/src/questions/javascript-questions.md
https://www.toptal.com/javascript/interview-questions
http://www.paulgraham.com/gh.html // great hackers

Javascript:
https://codeburst.io/javascript-wtf-is-es6-es8-es-2017-ecmascript-dca859e4821c
https://javascript.info/async
https://eloquentjavascript.net/

online tools
https://rextester.com/RBTO71933 // for database query
https://www.diawi.com/ // for ios ipa sharing and installation
https://beta.observablehq.com/@mcwebb/rison-online-decoder-encoder () //decoder
https://beta.observablehq.com/@nyurik/rison-online-decoder-encoder (required parentheses) //decoder
https://jwt.io //access token

installation
https://docs.google.com/document/d/143Km64SzVIDgdRantumDtBn_gjaGSu-X96zlzrcHg4c/edit

command line
https://www.learnenough.com/command-line-tutorial

react-native
https://native.directory/