ReactJS updating a single object inside a state array

Question

I have a state called this.state.devices which is an array of device objects.

Say I have a function

updateSomething: functi         


        

Answer 1

For some reason above answers didn't work for me. After many trials the below did:

if (index !== -1) {
            let devices = this.state.devices
            let updatedDevice = {//some device}
            let updatedDevices = update(devices, {[index]: {$set: updatedDevice}})
            this.setState({devices: updatedDevices})
    }

And I imported update from immutability-helper based on the note from: https://reactjs.org/docs/update.html