From the react documentation: componentDidMount() is invoked immediately after a component is mounted. Initialization that requires DOM nodes should go here. If you need to load data from a remote endpoint, this is a good place to instantiate the network request. This method is a good place to set up any subscriptions. If you do that, don’t forget to unsubscribe in componentWillUnmount().

Eric Vicenti from facebook. He works on React native and very helpful. You can check his youtube channel with videos on building a photo viewer as the one used un facebook from scratch. https://www.youtube.com/channel/UC2H16-XPP4IWrFl54ADOU3w

check this link https://serverless-stack.com/

infinite loop. you should add a condition to break a = 1 while a: a += 23 print a # assuming you do not want it to run forever if a > 100: break

I have read a twitter somewhere and was about python and could be applied to any programming language: If you want to learn python, try building something with it.

vscode just try it and you will know it is the best. Also if you use react you should check nuclide.