I'm reading the intro to redux pattern, and there is the following paragraph there:
... consider the new requirements becoming common in front-end product development, such as handling optimistic updates, rendering on the server, fetching data before performing route transitions, and so on.
My question is what is optimistic updates here?
In an optimistic update the UI behaves as though a change was successfully completed before receiving confirmation from the server that it actually was - it is being optimistic that it will eventually get the confirmation rather than an error. This allows for a more responsive user experience.
来源：https://stackoverflow.com/questions/33009657/what-is-optimistic-updates-in-front-end-development