var mobx = require("mobx")
const autorun = mobx.autorun;
const observable = mobx.observable;
const obs = observable({})
setTimeout(() => {
console.log('change a')
obs.A = 1
setTimeout(() => {
console.log('chagne b')
obs.B = 2
}, 1000)
}, 1000)
autorun(() => {
const A = obs.A
const B = obs.B
if (A !== undefined && B !== undefined) {
obs.C = A / B
console.log('calc C', obs.C)
}
})
autorun(() => {
const C = obs.C
const B = obs.B
if (C !== undefined && B !== undefined) {
obs.D = C * B
console.log('calc D', obs.D)
}
})
Created from: https://npm.runkit.com/mobx