TypeScriptTypeScript byteStandard~3h time-box

Meter Reader

Read the digits shown on an industrial meter's segment display. Each digit is rendered as a 3-column × 4-row pattern of pipes (|), underscores (_), and spaces. Parse these patterns and return the corresponding numeric string.

Meter Reader
Step 1
Clone the starter repo
Candidate gets the full project locally — README, source, tests, runner config.
Step 2
Run the visible tests
Public test file is right there. Expectations are explicit from minute one.
Step 3
Make tests pass, push
Candidate works in their own style, pushes reviewable commits for your team.
Starter repo
What candidates clone
3 files
  • jest.config.js
  • meter-reader.test.ts
  • meter-reader.ts

The full README and the hidden test suite are available once you open the byte in your CodeSubmit workspace. Candidates never see the hidden tests.

Skills tested
parsingpattern recognitionvalidationstrings
Difficulty
Standard

Standard engineering judgment. Multiple edge cases worth handling.