Thoughtspot

Build a city search component with a text input that dynamically fetches and displays matching city suggestions from an API.

City Search I

Add result caching to the city search so previously searched terms return instantly without redundant API calls.

Implement debouncing in the city search to reduce excessive API calls while the user is actively typing.

Implement a custom useMemo hook to memoize expensive computations.

Takes a nested array and merges all its layers into a single, flat array.

Groups the elements of an array based on a specified criterion.

Measure the performance impact of memoization using console.time and console.timeEnd.

The memoize function takes a function and returns its memoized variant, optimizing repeated calls by storing previous results.

Processing data sequentially through functions, where each uses the previous output as input.

Waits for all promises in an iterable to resolve and returns an array of their results or rejects immediately if any promise is rejected.