out-of-order-results.js

let lastRequestId = 0

const searchRequest = (query) => {
  const requestId = ++lastRequestId
  
  // fetch results somehow, and then...
  return fetchSearchResults(query)
    .then(results => {
      if (requestId === lastRequestId) {
        performStateUpdate(results) // do your state updates here
      }
    })
}