https://www.joshmorony.com/building-a-crud-ionic-2-application-with-firebase-angularfire/
https://www.youtube.com/watch?v=r6I7GFLsUPA
https://devdactic.com/login-ionic-2/
https://www.youtube.com/watch?v=LVrF-aQ6NxQ

password reset
http://stackoverflow.com/questions/38239883/angularfire-2-sendpasswordresetemail

to add components
ionic g component UserInfo
ng generate component [componentname]
it automatically adds the component to the  app.module.ts
to app pages
ionic g page chats


camera options
https://www.youtube.com/watch?v=-5VIU8o31aQ
firebase images upload
https://www.youtube.com/watch?v=6yGrLWq-oIo

pagination
https://thielcole.github.io/ionic2/2016/11/15/pagination-angularfire2.html
queries
https://www.youtube.com/watch?v=sKFLI5FOOHs
deploy IOS device
https://www.youtube.com/watch?v=2O_8HAsz_gU

deploy with no developer program
https://www.youtube.com/watch?v=NxvJOf71e0w

chat app
https://www.youtube.com/watch?v=qiqLLFCTNxA

events
https://learnionic2.com/2017/03/28/using-events-ionic-2/

git push -u origin master




errors
Unable to find name 'fetch'
https://stackoverflow.com/questions/42293176/cannot-find-name-fetch

runtime errors
ionic plugin add cordova-plugin-camera