Design Patterns You Used | Dataford Interview Questions

Can you explain the design patterns you have worked on?

Asked in the Technical stage. Logged as the Technical question of a Citi Solutions Architect interview on 13 Jan 2021.

To demonstrate your answer in code, implement a configurable formatter using the Strategy and Factory patterns. Given a list of messages and a formatter name, return the formatted messages.

Function

format_messages(messages, formatter) returns a list of strings. Supported formatters are plain, upper, and bracket.

Constraints

0 <= len(messages) <= 10^4
Each message is a string.
The formatter is one of "plain", "upper", or "bracket".

Function Signature

def format_messages(messages, formatter):

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Problem