MobX Quick Start Guide

Visualizing async-operations with fromPromise()

Promises, a way of life in JavaScript, are great for dealing with asynchronous operations. When representing the state of operations on the React UI, we have to ensure each of the three states of a promise is handled. This includes the state when the promise is pending (operation in progress), fulfilled (operation completed successfully), or rejected (in case of failures). fromPromise() is a convenient way to handle a promise, and gives a nice API to visually represent the three states:

newPromise = fromPromise(promiseLike)

promiseLike: instance of Promise or (resolve, reject) => { }

fromPromise() wraps the given promise and gives back a new, MobX-charged promise with some additional observable ...