Hooks · easy

6. Modeling useState updates

Simulate a state-setter function without React.

Write `applyUpdater(state, updater)` that calls `updater` with the current `state` and returns the new value (like React's setState updater form).

Required in your answer: updater(

Transpiled, then run in a sandbox

function applyUpdater(state, updater) {
  // TODO
}

Output appears here.