Autocomplete Frontend System Design

Commonly asked at companies such as Apple, Google, LinkedIn, Microsoft, Uber, and others.

Problem Statement

Design an Autocomplete UI component that allows users to type a query into a text input and see a list of matching results in a popup. The user should be able to select a single result from the list.

This behavior is similar to the search boxes found on websites such as Flipkart, Amazon, Google, Meta, and many others.

Requirements Gatherings

Ask targeted clarifying questions to define scope and constraints. Defining a clear scope in this step can make or break your interview.

For an Autocomplete component, some questions we can ask:

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