Finding values that are not null or undefined with nullish coalescing

es2020.nullishCoalescing.after.js

const useCoolFeature1 = true
const useCoolFeature2 = false
const useCoolFeature3 = undefined
const useCoolFeature4 = null

const getUserFeaturePreference = (featurePreference) => {
  return featurePreference ?? true
}

getUserFeaturePreference(useCoolFeature1) // true
getUserFeaturePreference(useCoolFeature2) // false
getUserFeaturePreference(useCoolFeature3) // true
getUserFeaturePreference(useCoolFeature4) // true